Chemical Reactions and Properties of Matter Assessment

Which of the following states of matter take the shape of their container? Select all that apply.

• Solids
• Liquids
• Gases

True or false: Air is made of matter.

• True
• False

Griffin blew up balloons for a birthday party. Which of the following sentences are true? Select all that apply.

• This caused more gas particles to enter the balloons.
• The air particles inside of the balloon are packed closely together and vibrate only slightly.
• The force of the air particles in the balloon pushed against the walls of the balloon and made the balloon expand.
• Balloons are not made of matter.

After Griffin inflated one of the balloons, he accidentally took his hand off the balloon’s opening. This allowed the air to release as the balloon flew around the room. Which describes what is happening to the air particles?

• The air particles disappear.
• The air particles multiply as they leave the balloon.
• The air particles are tightly packed in the balloon.
• The air particles flow out of the balloon.

Which of property of matter determines how an object feels when you touch it?

• color
• texture
• hardness
• reflectivity

Which property of matter would be most important to consider when selecting a material to make a mirror?

• color
• texture
• hardness
• reflectivity

Which property of matter describes how an object is affected when it is scratched or dented?

• color
• texture
• hardness
• reflectivity

7. Which of the following mystery objects could have a white color, a smooth texture, and ranks very low on the hardness scale?

• glass
• chalk
• wood
• diamonds

9. Which of the following mystery objects is beige in color, has a gritty texture, and is often used in sandpaper due to its hardness and thermal conductivity?

• glass
• plastic
• sand
• metal

7. What type of change is occurring when candle wax melts?

• Chemical change; solid to liquid
• Chemical change; liquid to solid
• Physical change; solid to liquid
• Physical change; liquid to solid