To drink, growing plants, cleaning themselves, cooking
200
What size rocks might you use to build a rock wall?
Large, heavy rocks
200
Name three types of minerals.
gold, silver, iron, quartz...
200
What is the smallest form of rocks?
sand
200
What is the definition of soil?
The top layer of Earth.
200
What is the definition of a natural resource?
useful materials that come from Earth.
300
What are rocks made of?
mineral or minerals
300
What are the three properties of minerals?
hardness, color, luster
300
Describe how plants can break apart rocks
The roots of a plant can grown in a rock's cracks and break the rock as the plant grows
300
List four things you could find in soil.
leaves, twigs, roots, animals (dead or alive), bones
300
List three natural resources and give an example of how we use each one.
Plants-eat, build things
Soil-grow plants
Water-drink, water plants
Rocks-build things
400
What is the definition of a rock?
A rock is the hard, solid part of Earth that is not soil or metal.
400
What is the hardest mineral? Softest mineral?
Hardest: diamonds
Softest: Talc
400
Name two things that can cause a bicycle chain to rust
water and air can cause it to rust
400
Where do I usually find sandy soil?
Deserts, near oceans and lakes.
400
Fuel is anything that is burned to make heat or power. List three types of fuel.
Wood, oil, and gas
500
List three places where I might find rocks.
backyard, beach, forest, park
500
What three minerals is granite made up of ?
quartz, feldspar, mica
500
Tell how water and ice can cause weathering.
Water can be found in the cracks in a big rock. The rock breaks apart when the water freezes and turns to ice.
500
Name three types of soil and give two details to support each type of soil
Sandy-dry, rough, does not hold water, by ocean and lakes
Clay-iron in it, smooth, sticky, holds too much water
Loam-best soil, dark in color, dead animals