More cards in this set

Card 6

Front

Proving continental drift

Back

Preview of the front of card 6

Card 7

Front

Primary waves

Back

Preview of the front of card 7

Card 8

Front

Secondary waves

Back

Preview of the front of card 8

Card 9

Front

Distance wave moves=

Back

Preview of the front of card 9

Card 10

Front

Wave speed=

Back

Preview of the front of card 10