Unit 1 - Investigate Matter

Which of the following indicate that a chemical reaction has occurred?

• the formation of gas bubbles

• a change in color

• an odor

• all of these indicate that a chemical reaction as occurred

Tags

NGSS.MS-PS1-2

Which of the following produces new matter with new and different properties?

• physical change

• chemical property

• chemical change

• physical property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is type of property can be observed and measured without changing the material?

• physical

• chemical

The ability to burn is an example of a physical property.

• true

• false

You are performing an experiment of combining two substances in a closed container. You first pour 520 mL of a substance followed by 375 mL of substance two. A chemical reaction occurs. Choose the equation below that would best explain the total mass of the combined substances.

• 520 mL - 375 mL = 145 mL

• 520 mL x 375 mL = 195,000 mL

• 520 mL + 375 mL = 895 mL

• 895 mL - 520 mL = 375 mL

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a physical property that describes how light reflects off an object?

• magnetism

• reflectivity

• conductivity

• flexibility

Tags

NGSS.MS-PS4-2

The amount of space an object takes up is its ________________.

• matter

• mass

• volume

• property

How are the particles that make up a gas?

• very close together

• very far apart

A boiled egg in its shell weighs _________________ a raw egg in its shell.

• more than

• the same as

• less than

What would happen to the weight of an ice cube if it melted?

• It would weigh a little more.

• It would weigh the same.

• It would weigh a lot less.

• It would weigh a lot more.

Tags

NGSS.MS-PS1-4