8th Grade- Chapter 2 Test-Math and Models in Science

Last updated almost 3 years ago

36 questions

1

4

1

2

1

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8th Grade- Chapter 2 Test-Math and Models in Science

Last updated almost 3 years ago

36 questions

1

The official SI unit for temperature is the_______.

1

You should make sure you know the _______and use of safety equipment in the lab.

1

An estimate is not a guess because an estimate is based on_______.

1

_______are data points that do not fit with the rest of a data set.

1

The basic SI unit of mass is the_______.

1

A good technique for finding the volume of an irregular solid is _______.

1

 A(n) _______ is a visual representation, or a picture, of data.

1

4

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

1

Give me an example of a system that you may use in your daily life.

2

What is SI? Why do scientists use SI?

2

Tell me how mass and weight are alike and how they are different.

1

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat Island
Cat Island Plots Number of Pelican Nests
A 142
B 166
C 142
D 132
E 188

What is the mean of the number of pelican nests per plot on Cat Island?

1

Using the pelican table from above what is the mode from the data?

The closeness of a measurement to its true value is it's

 significant figures

estimate

accuracy

precision

If you add a mass of 3.7 g to a mass of 9.495 g, the sum with the correct number of significant digits is:

13.2 g

13.19 g

13.20 g

13.195 g

A line graph shows:

changes in the dependent variable only

changes in the independent variable only

how the dependent variable changes in response to the independent
variable

how the dependent variable changes on its own.

In a home central heating system, when the room temperature measured by the thermostat reaches a set value, the thermostat switches off the heater. This action by the thermostat is an example of:

a model

feedback

input

process

Which of the following would you use to measure the weight of an orange?

a  scale

a graduated cylinder

a triple-beam balance

a meniscus

For which of the following would the millimeter be the most appropriate unit of measure?

the wing span of a turkey vulture

the height of a very tall person

the length of an ant

the distance between Gary and South Bend

Which of the following would be considered a good model of Earth?

a globe

a bowl

a map of your state

an apple

Why are line graphs said to be powerful tools?

They are easier to make than bar graphs.

They show how different sets of data are related.

They give more information than bar graphs.

They can show both numerical and categorical data.

After you have completed a lab investigation you should do all of the following except:

turn off, unplug, and return any equipment to its proper place.

wash your hands thoroughly

clean up your work area

pour all liquid wastes down the sink drain.

What units would you use to measure the volume of a small cardboard box?

cubic centimeters

grams

degrees

liters

Which of the following is the middle number in a set of data?

mean

mode 

range

median

The official SI unit for temperature is the_______.

You should make sure you know the _______and use of safety equipment in the lab.

An estimate is not a guess because an estimate is based on_______.

_______are data points that do not fit with the rest of a data set.

The basic SI unit of mass is the_______.

A good technique for finding the volume of an irregular solid is _______.

 A(n) _______ is a visual representation, or a picture, of data.

To calculate the density of an object, you multiply mass by volume.

True

False

To find percent error, you subtract the true value from the experimental value and divide by the true value.

True

False

You should always work with an adult when doing field work.

True

False

If an accident occurs, you should immediately notify the fire department.

True

False

If you measure the mass of an object four times and get values that are very close to each other, the measurements are said to be accurate.

True

False

If you don’t understand a part of a lab investigation, you should ask your teacher.

True

False

Scientists use models to understand things they can observe directly.

True

False

A student calculated the density of tin to be 7.20 g/mL. The actual density of tin is 7.29 g/mL. Which of the following is his percent error?

0.01 percent

0.09 percent

1.23 percent

1.25 percent

Density determines whether an object will float or sink in water.

True

False

A system is a group of parts that work together to carry out a function.

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

True

False

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

Give me an example of a system that you may use in your daily life.

What is SI? Why do scientists use SI?

Tell me how mass and weight are alike and how they are different.

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat Island
Cat Island Plots Number of Pelican Nests
A 142
B 166
C 142
D 132
E 188

What is the mean of the number of pelican nests per plot on Cat Island?

Using the pelican table from above what is the mode from the data?

The closeness of a measurement to its true value is it's

 significant figures

estimate

accuracy

precision

If you add a mass of 3.7 g to a mass of 9.495 g, the sum with the correct number of significant digits is:

13.2 g

13.19 g

13.20 g

13.195 g

A line graph shows: 

changes in the dependent variable only

changes in the independent variable only

how the dependent variable changes in response to the independent
variable

how the dependent variable changes on its own.

In a home central heating system, when the room temperature measured by the thermostat reaches a set value, the thermostat switches off the heater. This action by the thermostat is an example of: 

a model

feedback

input

process

Which of the following would you use to measure the weight of an orange?

a  scale

a graduated cylinder

a triple-beam balance

a meniscus

For which of the following would the millimeter be the most appropriate unit of measure?

the wing span of a turkey vulture

the height of a very tall person

the length of an ant

the distance between Gary and South Bend

Which of the following would be considered a good model of Earth?

a globe

a bowl

a map of your state

an apple

Why are line graphs said to be powerful tools?

They are easier to make than bar graphs.

They show how different sets of data are related.

They give more information than bar graphs.

They can show both numerical and categorical data.

After you have completed a lab investigation you should do all of the following except:

turn off, unplug, and return any equipment to its proper place.

wash your hands thoroughly

clean up your work area

pour all liquid wastes down the sink drain.

What units would you use to measure the volume of a small cardboard box?

cubic centimeters

grams

degrees

liters

Which of the following is the middle number in a set of data?

mean

mode 

range

median

To calculate the density of an object, you multiply mass by volume.

True

False

To find percent error, you subtract the true value from the experimental value and divide by the true value.

True

False

You should always work with an adult when doing field work.

True

False

If an accident occurs, you should immediately notify the fire department.

True

False

If you measure the mass of an object four times and get values that are very close to each other, the measurements are said to be accurate.

True

False

 If you don’t understand a part of a lab investigation, you should ask your teacher.

True

False

Scientists use models to understand things they can observe directly.

True

False

A student calculated the density of tin to be 7.20 g/mL. The actual density of tin is 7.29 g/mL.  Which of the following is his percent error? 

0.01 percent

0.09 percent

1.23 percent

1.25 percent

 Density determines whether an object will float or sink in water.

True

False

A system is a group of parts that work together to carry out a function.

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

True

False

8th Grade- Chapter 2 Test-Math and Models in Science

8th Grade- Chapter 2 Test-Math and Models in Science

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

Give me an example of a system that you may use in your daily life.

What is SI? Why do scientists use SI?

Tell me how mass and weight are alike and how they are different.

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat IslandCat Island Plots Number of Pelican Nests A 142 B 166 C 142 D 132 E 188What is the mean of the number of pelican nests per plot on Cat Island?

Using the pelican table from above what is the mode from the data?

The closeness of a measurement to its true value is it's

If you add a mass of 3.7 g to a mass of 9.495 g, the sum with the correct number of significant digits is:

A line graph shows:

In a home central heating system, when the room temperature measured by the thermostat reaches a set value, the thermostat switches off the heater. This action by the thermostat is an example of:

Which of the following would you use to measure the weight of an orange?

For which of the following would the millimeter be the most appropriate unit of measure?

Which of the following would be considered a good model of Earth?

Why are line graphs said to be powerful tools?

After you have completed a lab investigation you should do all of the following except:

What units would you use to measure the volume of a small cardboard box?

Which of the following is the middle number in a set of data?

To calculate the density of an object, you multiply mass by volume.

To find percent error, you subtract the true value from the experimental value and divide by the true value.

You should always work with an adult when doing field work.

If an accident occurs, you should immediately notify the fire department.

If you measure the mass of an object four times and get values that are very close to each other, the measurements are said to be accurate.

If you don’t understand a part of a lab investigation, you should ask your teacher.

Scientists use models to understand things they can observe directly.

A student calculated the density of tin to be 7.20 g/mL. The actual density of tin is 7.29 g/mL. Which of the following is his percent error?

Density determines whether an object will float or sink in water.

A system is a group of parts that work together to carry out a function.

Doing good preparation ahead of time helps you stay safe during science investigations.

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

Give me an example of a system that you may use in your daily life.

What is SI? Why do scientists use SI?

Tell me how mass and weight are alike and how they are different.

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat IslandCat Island Plots Number of Pelican Nests A 142 B 166 C 142 D 132 E 188What is the mean of the number of pelican nests per plot on Cat Island?

Using the pelican table from above what is the mode from the data?

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat Island
Cat Island Plots Number of Pelican Nests
A 142
B 166
C 142
D 132
E 188

What is the mean of the number of pelican nests per plot on Cat Island?

Directions: Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat Island
Cat Island Plots Number of Pelican Nests
A 142
B 166
C 142
D 132
E 188

What is the mean of the number of pelican nests per plot on Cat Island?