1st 6 Weeks Science Test Review

What kind of changes can only be observed when a substance changes into a different substance?

• physical changes

• chemical changes

• liquid changes

• phase changes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

Is hammering wood together to build a house a chemical or physical change?

• chemical
• physical

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does a change in the size, shape, or state of matter indicate has taken place?

• chemical change

• physical change

• chemical reaction

• electron change

Tags

NGSS.MS-PS1-4

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

• crumpled paper
• pencil sharpening
• shrunken clothing
• sour milk

What is an example of a chemical change?

• Ripped paper

• boiled egg

• cracked egg

• sugar dissolving in water

Tags

NGSS.MS-PS1-2

Which is an example of a chemical change?

• freezing fruit juice

• slicing a potato

• boiling water

• silver jewelry tarnishing

Tags

NGSS.MS-PS1-2

What is the definition of chemical change?

• any change that results in the formation of new chemical substances.

• changing clothes

• matter cannot be created or destroyed, only change form

• changes affecting the appearance of a substance, but it doesn't result in a new substance being formed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A student had a beaker with a small amount of baking soda. The student added some vinegar to the baking soda and observed fizzing and bubbling.

Based on observation, which of these can the student conclude?

• A chemical reaction produced a solid.

• No chemical reaction took place.

• Only a physical change happened.

• A chemical reaction produced a gas.

Tags

NGSS.MS-PS1-2