PSSA Science Vocabulary List 11

forces that change the motion of an object

• balanced forces

• friction

• gravity

• unbalanced forces

• Hawaiian pizza

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

a natural feature at or below the Earth’s surface. Examples: mountains, valleys, rivers, etc.

• balanced forces

• sinkhole

• gravity

• cave

• landform

Tags

NGSS.MS-ESS2-2

forces that do not change the motion of an object

• gravity

• unbalanced forces

• friction

• fiction

• balanced forces

a force that acts between two objects or surfaces that are rubbing against each other

• gravity

• balanced forces

• unbalanced force

• friction

the force of attraction between two objects; always a pull and never a push

• gravity

• unbalanced forces

• balanced forces

• friction

Tags

NGSS.MS-PS2-4

a place in which the roof of a cave has collapsed and the ground above it has fallen into the cave

• valley

• peninsula

• cave

• sinkhole

• weathering

Tags

NGSS.MS-ESS2-2

a natural space in the rock below Earth’s surface (maybe the side of a mountain, too)

• valley

• peninsula

• cave

• sinkhole

• weathering

an area of the Earth’s surface that is lower than the land around it (usually with a river flowing through it)

• valley

• peninsula

• cave

• sinkhole

• weathering

Tags

NGSS.MS-ESS2-4

an area of land that sticks out into a large body of water (land is almost entirely surrounded by water)

• valley

• peninsula

• cave

• sinkhole

• weathering

the process in which rocks are broken down into smaller pieces (sediments)

• valley

• peninsula

• cave

• sinkhole

• weathering