Test 1: Properties of Matter

The law of Conservation of Mass states

• matter can be created and destroyed

• matter takes up space

• matter cannot be created or destroyed

• matter has a new mass after a chemical reaction

Tags

NGSS.MS-PS1-5

What happens to atoms in a chemical reaction?

• they are destroyed

• they are created

• they are rearranged

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NGSS.MS-PS1-5

Lynn had 100 mg of water and 50 mg of salt. She then combined the water and the salt and a chemical reaction occurred. What is the mass at the end of her experiment?

• 50

• 100

• 150

Tags

NGSS.MS-PS1-5

Does the image correctly represent the Law of Conservation of Mass?

• yes

• no

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Does the image represent the Law of Conservation of

• yes

• no

Tags

NGSS.MS-PS1-5

A student places some baking soda and a jar of lemon juice in a plastic bag and seals the bag. They weigh the bag and everything in it. They shake the bag so that the lemon juice spills out of the jar and mixes with the baking soda inside the bag. The student observes that bubbles form and the bag expands. If the student weighs the bag and everything in it after the bubbling stops and compares the final weight to the starting weight, what will they find out?

• The final weight will be greater than the starting weight because new atoms are produced during the experiment.

• The final weight will be less than the starting weight because some of the atoms are destroyed during the experiment.

• The final weight will be the same as the starting weight because the number of each kind of atom does not change during the experiment.

• The final weight will be the same as the starting weight because some atoms are destroyed, but new ones are created during the experiment.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Anything that has mass & takes up space

• gravity
• force
• matter
• volume

Tags

NGSS.MS-PS1-5

When a log is burned, what happens to the wood?

• The mass stays the same, but becomes smoke and ash.

• It disappears.

• The mass changes as it goes away.

• Nothing. You're imagining things.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A physical property is...

• a property that is observed and the substance does not change into something new

• a property that is observed and the substance changes into something new

Which is not a physical property

• flammability

• melting point

• boiling point

• density