U1: Matter & Interactions

In an __________________________, scientists test a question or hypothesis by conducting experiments.

• model

• guess

• investigation

• system

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

NGSS.MS-PS3-4

__________________________ is the "stuff" that everything is made of and has mass and takes up space.

• matter
• weight
• solid
• temperature

Tags

NGSS.MS-PS1-5

A __________________________ is one in which heat or gasses cannot leave or enter.

• experiment

• closed system

• open system

• insulator

An __________________________ is one in which heat or gasses can leave or enter

• closed system
• open system

• mass

• solid

The __________________________ of an object can often be measured with a digital scale.

• temperature

• color

• smell

• weight

A __________________________ occurs when only the appearance of a substance changes.

• chemical change

• physical change

• no change

• magical change

A _________________________ creates a new substance with different properties.

• chemical change

• physical change

• no change

• magical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When heat energy increases, the particles in a substance move faster and further apart, causing it to ___________.

• contract

• change color

• expand

• disappear

Tags

NGSS.MS-PS1-4

When heat energy decreases (cools), particles lose energy and move closer together, causing the material to _________.

• contract

• disappear

• expand

• explode

Tags

NGSS.MS-PS1-4

Materials that allow heat to pass through quickly are called _______________.

• insulators

• conductors

• solids

• liquids

Tags

NGSS.MS-PS3-3