This is the hard outer part of a tree that protects it.
What is the trunk?
This green part of a plant uses sunlight to make food.
What are leaves?
This is when the sun comes up in the morning.
What is sunrise?
This type of energy comes from the sun and does not pollute.
What is solar power?
This problem makes the Earth hotter because of pollution.
What is global warming?
These parts of a tree grow out from the trunk and hold leaves.
What are branches?
This is the process plants use to make energy from sunlight.
What is photosynthesis?
Another word for the first light of the day.
What is dawn?
Energy that comes from sources that never run out.
What is renewable energy?
Gases from cars and factories cause this kind of air problem.
What is pollution?
This part of the tree grows underground and absorbs water.
What is the root?
Animals and plants that live in the same place form this.
What is an ecosystem?
This happens when the sun goes down in the evening.
What is sunset?
Coal, oil, and gas are examples of these.
What are fossil fuels?
This happens when ice melts and sea levels rise.
What is climate change?
A place full of trees, smaller than a forest.
What are woods?
A plant that lives for many years and has a wooden trunk.
What is a tree?
The sun gives us light, heat, and this kind of natural energy.
What is solar energy?
This type of energy uses wind to produce electricity.
What is wind energy?
Animals or plants that may disappear forever are called this.
What are endangered species?
These small fruits often grow on bushes in forests and can be eaten by animals and people.
What are berries?
When a forest is destroyed by people cutting trees, it is called this.
What is deforestation?
Without this star, life on Earth would not be possible.
What is the Sun?
Using something again instead of throwing it away is called this.
What is recycling?
Protecting nature and using less energy helps the Earth do this.
What is sustainability?