Unit 1 Test on Scientific Method- Part 1

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What does a hypothesis represent in the scientific method?

The variables observed in the experiment

A proven fact about the experiment

The final conclusion of the research

A testable prediction about outcomes

What is the independent variable in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

The type of bread she uses

The temperature

How long it take to grow mold on each loaf

The flavor of the bread

What is the dependent variable in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

The temperature

How long it take to grow mold on each loaf

The type of bread she uses

The flavor of the bread

What are two constants in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

Locations the bread is placed 

The temperature

Same ingredients to make the bread

The same person making the bread

What is a good hypothesis based on the except?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

What temperature is best for growing mold on a loaf of bread?

If the temperature increases, mold growth will increase on bread

Mold will grow on bread in different temperatures

Mold will grow less in cold temperatures

What is the research question based on the except?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

What is the effect of mold growth on temperature of a room?

Temperature and mold growth

What temperature is needed for bread?

What is the effect of temperature on growing mold on a loaf of bread?

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

the temperature

the incubator

the male alligators

the gender of the alligator

A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day. Which plant is the control group?

All of them

Plant C

Plant A

Plant B

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment?

the number of apples

the first orchard

the second orchard

the chemical

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the control group in the experiment?

the first orchard

the chemical

the number of apples

the second orchard

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. What would be a constant in this experiment?

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. In order for the apple tree experiment to be valid scientifically, both orchards must:

have the same species of apple tree

receive the same amount of sunlight

receive the same amount of water

all of these

What's the difference between a hypothesis and a theory?

Hypotheses can't be proven; theories can.

"Theory" is another word for "fact;" "hypothesis" is another word for "guess."

Theories have been supported through test data; hypotheses have not been tested.

Theories contain many hypotheses; a hypothesis only contains one theory

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.

What is the dependent variable?

years

population sizes of bird species

bird species

ten years

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.

What type of graph is best to be used?

scatterplot

pie chart

bar graph

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.

What is a good title for the graph?

The effect of protection on the population of bird species

Bird species change over time

How bird species populations change

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.

What is the mean population of Black Swan?

57

156

171

52

Scientists have noted a decline in fungi species dating back to the early 1900’s. Hippies have noticed with concern that the annual crops of edible mushrooms in France and Germany have declined since 1950. One hypothesis to explain this decline is that edible fungi are being over-harvested and cannot replenish fast enough. Other factors could contribute to the decline. Which of the following findings would void (make incorrect) overharvesting as the cause of the decline?

Similar declines among edible North American species.

A parallel decline in non-edible species of mushrooms.

High fungal numbers in remote unpopulated areas.

Fungal population increases in tropical regions where mushrooms are not part of the diet.

What is the mean number of bubbles in dim light?

8

28.9

6.9

48

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Describe the trend in the data.

As the number of leaves removed increases, the transpiration rate decreases

The more leaves, the less transpiration

As the number of leaves removed increases, the transpiration rate increases

Transpiration rate increases when there are more leaves removed

The graph shows the mean annual changes in global temperatures between 1880 and 2014. The mean temperature from 1951 to 1980 was used as the value of zero change in temperature.

Calculate the increase in mean global temperature between 1880 and 2010.

 0.68   0C

0.88 0C

0.48 oC

5 0C

Which sex of snake has the greater mean mass?

males

females

Which species of snake is the strongest?

L. colubrina

L. laticaudata

For L. colubrina, calculate the difference between the strength of the male and female snakes.

25.5

20.0

5.5

45.5

Estimate the proportion in % of C. hyperboreus present in the food given to the chicks at the Greenland site.

57%

85%

48%

30%

In a graph, the dependent variable is usually found on the

x- axis

y- axis

key

Examine the picture below and answer the following question.

What is the dependent variable?

population size

days

time

Examine the picture below and answer the following question.

What is the population size at 5 days?

900

1,000

8,800

880

Examine the picture below.

On Day 7, the plants kept in the sun for 3 hours were how tall?

130 mm

8 mm

70 mm

20 mm

Examine the picture below.

On Day 7, the plants kept in the sun for 6 hours were how tall?

70 mm

8 mm

130 mm

20 mm

Examine the picture below.

On Day 10, the plants kept in the sun for 9 hours were how tall?

160 mm

40 mm

140 mm

10 mm

Examine the picture below.

Based on the graph, the plant grows best in what amount of sunlight?

1 hour

6 hours

9 hours

3 hours

Examine the table below.

If a new soil type is tested and contains similar properties to loamy soil but retains slightly more moisture, what would be the most likely outcome?

Plant growth would be slightly higher or similar to that in loamy soil

Plant growth would decrease significantly due to overwatering

Growth would be lower than in sandy soil

Plants would fail to germinate

What does a hypothesis represent in the scientific method?

The variables observed in the experiment

A proven fact about the experiment

The final conclusion of the research

A testable prediction about outcomes

What is the independent variable in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

The type of bread she uses

The temperature

How long it take to grow mold on each loaf

The flavor of the bread

What is the dependent variable in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

The temperature

How long it take to grow mold on each loaf

The type of bread she uses

The flavor of the bread

What are two constants in the excerpt below?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

Locations the bread is placed 

The temperature

Same ingredients to make the bread

The same person making the bread

What is a good hypothesis based on the except?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

What temperature is best for growing mold on a loaf of bread?

If the temperature increases, mold growth will increase on bread

Mold will grow on bread in different temperatures

Mold will grow less in cold temperatures

What is the research question based on the except?

Giovanni is doing an experiment to see what temperature produces the most mold on bread. Normally her bread sits at room temperature on the counter. She will try putting her bread in the refrigerator, in a warm incubator, and on the counter. She will measure how long it takes for mold to grow on each loaf of bread.

What is the effect of mold growth on temperature of a room?

Temperature and mold growth

What temperature is needed for bread?

What is the effect of temperature on growing mold on a loaf of bread?

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

the temperature

the incubator

the male alligators

the gender of the alligator

A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day. Which plant is the control group?

All of them

Plant C

Plant A

Plant B

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment?

the number of apples

the first orchard

the second orchard

the chemical

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the control group in the experiment?

the first orchard

the chemical

the number of apples

the second orchard

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. What would be a constant in this experiment?

the amount of water provided to the plants

the amount of fertilizer

the second orchard

the number of apples

the chemical

the first orchard

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. In order for the apple tree experiment to be valid scientifically, both orchards must:

have the same species of apple tree

receive the same amount of sunlight

receive the same amount of water

all of these

What's the difference between a hypothesis and a theory?

Hypotheses can't be proven; theories can.

"Theory" is another word for "fact;" "hypothesis" is another word for "guess."

Theories have been supported through test data; hypotheses have not been tested.

Theories contain many hypotheses; a hypothesis only contains one theory

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.


What is the dependent variable?

years

population sizes of bird species

bird species

ten years

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.


What type of graph is best to be used?

scatterplot

pie chart

bar graph

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.


What is a good title for the graph?

The effect of protection on the population of bird species

Bird species change over time

How bird species populations change

A study was made of endangered birds to see if their populations were increasing by
being protected from hunters. Scientists went out into the field every ten years and
counted the number of Whooping Crane, California Condor, and Black Swans they
found in their spring feeding grounds. Review the data table below.


What is the mean population of Black Swan?

57

156

171

52

Scientists have noted a decline in fungi species dating back to the early 1900’s. Hippies have noticed with concern that the annual crops of edible mushrooms in France and Germany have declined since 1950. One hypothesis to explain this decline is that edible fungi are being over-harvested and cannot replenish fast enough. Other factors could contribute to the decline. Which of the following findings would void (make incorrect) overharvesting as the cause of the decline?

Similar declines among edible North American species.

A parallel decline in non-edible species of mushrooms.

High fungal numbers in remote unpopulated areas.

Fungal population increases in tropical regions where mushrooms are not part of the diet.

What is the mean number of bubbles in dim light?

8

28.9

6.9

48

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Describe the trend in the data.

As the number of leaves removed increases, the transpiration rate decreases

The more leaves, the less transpiration

As the number of leaves removed increases, the transpiration rate increases

Transpiration rate increases when there are more leaves removed

The graph shows the mean annual changes in global temperatures between 1880 and 2014. The mean temperature from 1951 to 1980 was used as the value of zero change in temperature.

Calculate the increase in mean global temperature between 1880 and 2010.

 0.68   0C

0.88 0C

0.48 oC

5 0C

Which sex of snake has the greater mean mass?

males

females

Which species of snake is the strongest?

L. colubrina

L. laticaudata

For L. colubrina, calculate the difference between the strength of the male and female snakes.

25.5

20.0

5.5

45.5

Estimate the proportion in % of C. hyperboreus present in the food given to the chicks at the Greenland site.

57%

85%

48%

30%

In a graph, the dependent variable is usually found on the

x- axis

y- axis

key

Examine the picture below and answer the following question.

What is the dependent variable?

population size

days

time

Examine the picture below and answer the following question.

What is the population size at 5 days?

900

1,000

8,800

880

Examine the picture below.

On Day 7, the plants kept in the sun for 3 hours were how tall?

130 mm

8 mm

70 mm

20 mm

Examine the picture below.

On Day 7, the plants kept in the sun for 6 hours were how tall?

70 mm

8 mm

130 mm

20 mm

Examine the picture below.

On Day 10, the plants kept in the sun for 9 hours were how tall?

160 mm

40 mm

140 mm

10 mm

Examine the picture below.

Based on the graph, the plant grows best in what amount of sunlight?

1 hour

6 hours

9 hours

3 hours

Examine the table below.

If a new soil type is tested and contains similar properties to loamy soil but retains slightly more moisture, what would be the most likely outcome?

Plant growth would be slightly higher or similar to that in loamy soil

Plant growth would decrease significantly due to overwatering

Growth would be lower than in sandy soil

Plants would fail to germinate

Unit 1 Test on Scientific Method- Part 1

Unit 1 Test on Scientific Method- Part 1

What does a hypothesis represent in the scientific method?

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day. Which plant is the control group?

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the control group in the experiment?

A scientist testing the affects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. What would be a constant in this experiment?

What's the difference between a hypothesis and a theory?

What is the mean number of bubbles in dim light?

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.Describe the trend in the data.

The graph shows the mean annual changes in global temperatures between 1880 and 2014. The mean temperature from 1951 to 1980 was used as the value of zero change in temperature.Calculate the increase in mean global temperature between 1880 and 2010.

Which sex of snake has the greater mean mass?

Which species of snake is the strongest?

For L. colubrina, calculate the difference between the strength of the male and female snakes.

Estimate the proportion in % of C. hyperboreus present in the food given to the chicks at the Greenland site.

In a graph, the dependent variable is usually found on the

Examine the picture below and answer the following question.What is the dependent variable?

Examine the picture below and answer the following question.What is the population size at 5 days?

Examine the picture below.On Day 7, the plants kept in the sun for 3 hours were how tall?

Examine the picture below.On Day 7, the plants kept in the sun for 6 hours were how tall?

Examine the picture below.On Day 10, the plants kept in the sun for 9 hours were how tall?

Examine the picture below.Based on the graph, the plant grows best in what amount of sunlight?

Examine the table below.If a new soil type is tested and contains similar properties to loamy soil but retains slightly more moisture, what would be the most likely outcome?

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

Describe the trend in the data.

The graph shows the mean annual changes in global temperatures between 1880 and 2014. The mean temperature from 1951 to 1980 was used as the value of zero change in temperature.

Calculate the increase in mean global temperature between 1880 and 2010.

Examine the picture below and answer the following question.

What is the dependent variable?

Examine the picture below and answer the following question.

What is the population size at 5 days?

Examine the picture below.

On Day 7, the plants kept in the sun for 3 hours were how tall?

Examine the picture below.

On Day 7, the plants kept in the sun for 6 hours were how tall?

Examine the picture below.

On Day 10, the plants kept in the sun for 9 hours were how tall?

Examine the picture below.

Based on the graph, the plant grows best in what amount of sunlight?

Examine the table below.

If a new soil type is tested and contains similar properties to loamy soil but retains slightly more moisture, what would be the most likely outcome?