More cards in this set

Card 6

Front

What's a vacuum.

Back

Preview of the front of card 6

Card 7

Front

Heat energy travels to earth by .........?

Back

Preview of the front of card 7

Card 8

Front

What's an element?

Back

Preview of the front of card 8

Card 9

Front

What's a compound?

Back

Preview of the front of card 9

Card 10

Front

What's a mixture?

Back

Preview of the front of card 10