Fill in the blank. Some rocks are made from.......
marine algae
Oops!
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
gift
Win 25 points!
Okay!
shark
Other team loses 10 points!
Okay!
banana
Go to last place!
Oops!
5
Read
Rock layers are found all over the world. Many of these rocks contain fossils. Fossils provide clues about the ages of the rocks in which they are found.