Ch 5 Vocabulary Flashcards
Know all the words presented in Scott Foresman Diamond Editon Science Second Grade Chapter 5 -What are Earth's Natural Resources?
1
Q
Natural Resource
A
A useful thing that comes from nature
2
Q
Boulder
A
A very big rock (over 10 inches in diameter)
3
Q
Sand
A
Many tiny pieces of rock
4
Q
Minerals
A
Nonliving materials that come from Earth
5
Q
Erosion
A
When rocks or soil are moved by water or wind
6
Q
Weathering
A
The breaking apart and changing of rocks
7
Q
Pollution
A
When something harmful is added to the land, air, or water
8
Q
Recycle
A
To change something so it can be used again
