What makes up Earth?
True or False: there is more land than water on Earth.
False.
There is more water than land on Earth.
____ are nonliving things. They can be many colors. Some feel smooth and others feel rough.
Rocks.
____ happens when rocks break apart and change. This can also take a long time.
Weathering.
List two ways birds may use air.
To breathe and fly.
______ means to use things again.
Reuse.
How can you tell land from water in real life?
Water is wet, while land is dry and hard.
_____ is tiny pieces of broken rock.
Sand.
What is Erosion?
Erosion can change land. Erosion happens when wind or water moves rocks and soil.
Fun Fact: roots of plants help hold down the soil in place. Plants can slow down erosion.
Why is it important to keep the air clean?
People, animals, and plants need clean air to live and grow.
_____ means to make old things into new again.
Recycle.
Name two kinds of water found on Earth.
possible answers: lakes, rivers.
What is a natural resource? Name one example.
A natural resource is something that comes from nature that you can use.
Examples: air, sunlight, trees, water, soil, and more.
In what ways can weathering change a rock?
It can change a rock's shape, size, and color.
What might happen to a plant if it did not have clean air?
_____ means to use less.
Reduce.
Name two kinds of land found on Earth.
possible answers: plains, hills.
List three things that might be found in soil.
Sand, clay, and hummus.
What can change rocks?
Weathering can change rocks.
What are minerals? Where are minerals found?
Minerals are nonliving things.
Minerals are found in rocks and soil.
An old glass bottle is made into glass beads. Is this an example of reducing, reusing, or recycling?
Recycling.
Why is water important to living things?
All living things need water to live.
What is the difference between clay and hummus?
Clay is sticky and soft. It is hard for plants to grow in clay.
Hummus is made of parts of living things that died. Hummus in the soil helps plants grow.
True or False. Tree roots breaks the sidewalks as they grow. This is weathering.
True.
Give an example of a mineral.
Gold, silver, and copper are minerals.
People use copper to make pennies.
You draw on both sides of a piece of paper instead of on only one side. How does this help save Earth's resources?
By reducing the paper I use.