Physical Science Review 1

How do water particles behave when they are in the gaseous state?

• They move around very slowly

• They are packed together very tightly.

• They move quickly and freely.

• They do not move at all.

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Which of the following is a physical change?

• A nail rusting.
• Wood burning.
• Vinegar and baking soda mixing together to create a gas.
• Tearing a piece of paper into two pieces.

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Which state of matter has a definite shape?

• Solid
• Liquid
• Gas
• All of the above.

Which of the following is an example of a chemical change?

• Ice melting.
• Steam leaving a hot tub.
• A nail rusting.
• Water freezing into ice.

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What is matter?

• Volume of an object
• Anything that has mass and takes up space
• Mass of an object
• Space of an object

Which state of matter takes the shape of its container?

• solid
• gas
• liquid

Chemical X has a mass of 20 grams, and chemical Y has a mass of 30 grams. If the two chemicals are mixed and a complete chemical reaction takes place, what is most likely the mass of the product?

• 20 grams

• 30 grams

• 50 grams

• 100 grams

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Burning and baking are examples of __________________ because they are irreversible.

• chemical changes
• physical changes
• melting
• freezing

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Which object is the least dense?

• soda cap

• bolt

• milk

• ping pong ball

At what point does a liquid change to a gas?

• freezing

• vaporization (evaporation/boiling)

• melting

• condensation

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