Ch. 5-1 pt. 1 Evidence of a Chemical Change

Which of the following is NOT an example of a chemical change?

• burning match
• a car rusting
• baking a cake
• melting ice

Tags

NGSS.MS-PS1-2

Which shows evidence that a chemical change has occurred?

• slicing potato
• apple/potato turns brown
• biting apple
• peeling apple/potato

Tags

NGSS.MS-PS1-2

Which evidence demonstrates that a chemical change has occurred.

• water level rises
• water becomes cloudy
• gas is produced (bubbles)
• tablet dissolves

Tags

NGSS.MS-PS1-2

Rust is a sign of ___________________ change.

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

Precipitant is when you mix two liquid chemicals and something new forms at the bottom of the container. This is ...

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Dissolving sugar into water is an example of ______________.

• Chemical Change

• Physical Change

When you burn something it can never be undone. Burning is an example of ...

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Marie had a beaker with a small amount of baking soda. She added a few drops of pickle juice to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Marie determine about the new substance formed by mixing the baking soda and pickle juice?

• A chemical reaction produced a solid.
• A chemical reaction produced a gas.
• No chemical reaction took place.
• Only a physical change happened.

Tags

NGSS.MS-PS1-2

Which of the following characteristics is shared by all chemical reactions?

• Produce a precipitate
• Show a color change
• Release heat energy
• Form new substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Fireworks Exploding are a ________ change.

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5