Chemical Reactions Post-Test 2024 Practice

Matter can be classified by characteristics. In science, what do we call these characteristics?

• acidic and basic properties
• physical and chemical properties
• dependent and independent properties

Which characteristics are chemical characteristics? (Select 4 Answers.)

• flammability
• reactivity
• combustibility
• ability to rust
• melting point

Tags

NGSS.MS-PS1-2

Which characteristics are physical characteristics? (Select 4 Answers.)

• melting point
• solubility
• odor
• boiling point
• flammability

Matter can go through changes. What are these changes called?

• positive and negative changes
• acidic and basic changes
• physical and chemical changes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is the difference between a physical and chemical change?

• Physical Changes create a new substance.

• Chemical Changes create a new substance.

Tags

NGSS.MS-PS1-2

What happens to the atoms of matter during a chemical change?

• The bonds break and atoms rearrange themselves to form new compounds.

• The atoms don't change.

• Some of the atoms disappear.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which changes are physical changes? (Select 4 Answers.)

• Cutting paper
• Crushing a Can
• Painting a Fence
• Burning Wood

• Making a paper airplane

Which changes are chemical changes? (Select 4 Answers.)

• Toasting Bread
• A Rotting Banana
• Dissolving Sugar

• Fireworks Display
• Rusting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Two 6th Grade students mixed two substances together in a container covered with a balloon. After the mixing the balloon inflated. What sign is present that chemical reaction has happened?

• A precipitate formed.
• The color changed.
• A gas was produced.

Tags

NGSS.MS-PS1-2

A student accidently spilled vinegar into a glass of milk. Soon a strange solid appeared. What sign is present that a chemical reaction has happened?

• A precipitate formed.
• The color changed.
• The temperature changed.

Tags

NGSS.MS-PS1-2