Weathering
What types of changes are included in the process of weathering? A. Chemical changes B. Physical changes C. Both
C. Both
What is most likely to make a rock break into pieces?
A. Animals digging next to a rock
B. Leaves decaying on a rock
C. Snow melting in a crack in a rock
D. Water freezing in a crack in a rock
D. water freezing in a crack in a rock
What is one of the different sizes of rocks that can be found in soil?
Pebbles, gravel, sand, silt, clay
What type of weathering changes the size of the rock, but does not change anything else about the rock?
Physical Weathering
What is weathering?
Weathering is the process of rocks breaking down into smaller pieces over time.
What do we call the organic material that is made of decayed plant and animals that is found in soil?
Humus
What is one way physical weathering occurs?
Answers may vary.
Acid rain causes what type of weathering?
Chemical weathering
Forest area
What type of weathering causes caves to form and for holes to form in rocks at the seashore?
Chemical Weathering
What will a rock most likely look like at the end of a river compared to the same rock at the beginning of the river?
It will be smaller and smoother at the end of the river.
Other than rocks and humus, what else can be found in the soil?
True or False: Rust is a form of physical weathering.
False. It is chemical weathering.
True or False: Weathering happens overnight.
False. Weathering happens over a long period of time.
Why do plants need soil?
Holds plants in place and gives them nutrients to grow.