Unit 1 Practice

Sig Fig Extra Practice 

1

How many sig figs are in the following value: 9.30?

1

How many sig figs are in the following value: 0.005?

1

How many sig figs are in the following value: 3400?

1

Round 7843 to 2 sig figs?

1

Round 0.0054832 to 2 sig figs?

Element, Compound, Homogeneous, Heterogeneous

1

Is the following an element, compound, homogeneous, or heterogeneous: Silver?

1

Is the following an element, compound, homogeneous, or heterogeneous: NaCl?

1

Is the following an element, compound, homogeneous, or heterogeneous: Carbon?

1

Is the following an element, compound, homogeneous, or heterogeneous: lucky charms cereal?

1

Is the following an element, compound, homogeneous, or heterogeneous: hot sauce?

Percent Error, Accuracy, and Percision 

1

Is the image below show values that are accurate, precise, both or neither?

1

Which student is the most accurate?

1

Which student is the most precise?

1

Find the percent error for trial 1 for student B?

Density 

1

What is the volume of the apple?

1

If the mass of the apple is 30g, what is the density fo the apple?

1

If the apple is cut in half,what will happen when it is placed in water?

1

What will the density be when the apple is cut in half?

Scientific Method

1

A scientist is testing If medical marijuana effective for pain reduction in people with chronic pain? They give Group A 1 gram of medical marijuana, they give Group B 2 grams of medical marijuana, and Group C they give no marijuana. Then they measure their pain using a survey on the 3rd day in the morning. What is the independent variable?

1

A scientist is testing If medical marijuana effective for pain reduction in people with chronic pain? They give Group A 1 gram of medical marijuana, they give Group B 2 grams of medical marijuana, and Group C they give no marijuana. Then they measure their pain using a survey on the 3rd day in the morning. What is the dependent variable?

1

A scientist is testing If medical marijuana effective for pain reduction in people with chronic pain? They give Group A 1 gram of medical marijuana, they give Group B 2 grams of medical marijuana, and Group C they give no marijuana. Then they measure their pain using a survey on the 3rd day in the morning. What is a constant?

1

A scientist is testing If medical marijuana effective for pain reduction in people with chronic pain? They give Group A 1 gram of medical marijuana, they give Group B 2 grams of medical marijuana, and Group C they give no marijuana. Then they measure their pain using a survey on the 3rd day in the morning. What is a control?

Chemical Vs. Physical Change

1

Is the following a chemical or physical change:
Water evaporates from a pot on the stove.

1

Is the following a chemical or physical change:
Baking soda and vinegar are mixed and bubbles form.

1

Is the following a chemical or physical change:
Calcium chloride is added to water and it heats up.

1

Is the following a chemical or physical change:
Dry ice turns from a solid to a gas

Matter and Phase Changes

1

_______ is a phase of matter with definite shape.  _______ is a phase of matter which does not have definite shape, but it has definite volume. _______ is a phase of matter which expands. 

1

When a solid changes to a gas this is called _______.  When a solid changes to a liquid this is called _______  .  When a liquid changes to a gas this is called _______ .

1

When a gas changes to a liquid, the space between the particles ____________.

1

Unit 1 Practice

How many sig figs are in the following value: 9.30?

How many sig figs are in the following value: 0.005?

How many sig figs are in the following value: 3400?

Round 7843 to 2 sig figs?

Round 0.0054832 to 2 sig figs?

Is the following an element, compound, homogeneous, or heterogeneous: Silver?

Is the following an element, compound, homogeneous, or heterogeneous: NaCl?

Is the following an element, compound, homogeneous, or heterogeneous: Carbon?

Is the following an element, compound, homogeneous, or heterogeneous: lucky charms cereal?

Is the following an element, compound, homogeneous, or heterogeneous: hot sauce?

Is the image below show values that are accurate, precise, both or neither?

Which student is the most accurate?

Which student is the most precise?

Find the percent error for trial 1 for student B?

What is the volume of the apple?

If the mass of the apple is 30g, what is the density fo the apple?

If the apple is cut in half,what will happen when it is placed in water?

What will the density be when the apple is cut in half?

Is the following a chemical or physical change:Water evaporates from a pot on the stove.

Is the following a chemical or physical change:Baking soda and vinegar are mixed and bubbles form.

Is the following a chemical or physical change:Calcium chloride is added to water and it heats up.

Is the following a chemical or physical change:Dry ice turns from a solid to a gas

When a gas changes to a liquid, the space between the particles ____________.

Draw the particle diagrams to show condensation.

How many sig figs are in the following value: 9.30?

How many sig figs are in the following value: 0.005?

How many sig figs are in the following value: 3400?

Round 7843 to 2 sig figs?

Round 0.0054832 to 2 sig figs?

Is the following an element, compound, homogeneous, or heterogeneous: Silver?

Is the following an element, compound, homogeneous, or heterogeneous: NaCl?

Is the following an element, compound, homogeneous, or heterogeneous: Carbon?

Is the following an element, compound, homogeneous, or heterogeneous: lucky charms cereal?

Is the following an element, compound, homogeneous, or heterogeneous: hot sauce?

Is the image below show values that are accurate, precise, both or neither?

Which student is the most accurate?

Which student is the most precise?

Find the percent error for trial 1 for student B?

What is the volume of the apple?

If the mass of the apple is 30g, what is the density fo the apple?

If the apple is cut in half,what will happen when it is placed in water?

What will the density be when the apple is cut in half?

Is the following a chemical or physical change:Water evaporates from a pot on the stove.

Is the following a chemical or physical change:Baking soda and vinegar are mixed and bubbles form.

Is the following a chemical or physical change:Calcium chloride is added to water and it heats up.

Is the following a chemical or physical change:Dry ice turns from a solid to a gas

When a gas changes to a liquid, the space between the particles ____________.

Draw the particle diagrams to show condensation.

Is the following a chemical or physical change:
Water evaporates from a pot on the stove.

Is the following a chemical or physical change:
Baking soda and vinegar are mixed and bubbles form.

Is the following a chemical or physical change:
Calcium chloride is added to water and it heats up.

Is the following a chemical or physical change:
Dry ice turns from a solid to a gas

Is the following a chemical or physical change:
Water evaporates from a pot on the stove.

Is the following a chemical or physical change:
Baking soda and vinegar are mixed and bubbles form.

Is the following a chemical or physical change:
Calcium chloride is added to water and it heats up.

Is the following a chemical or physical change:
Dry ice turns from a solid to a gas