This layer of Earth is where we live and is made up of solid rock.
What is crust?
This type of energy comes from the Sun and travels in waves.
What is solar energy?
Plants use this process to make their own food using sunlight.
What is photosynthesis?
This is the first step in the scientific method.
What is asking a question?
These resources, such as water and sunlight, cannot be used up.
What are renewable resources?
Rocks are broken down into smaller pieces through this process.
What is weathering?
Materials that allow electricity to flow easily are called this.
What are conductors?
These are the building blocks of all living things.
What are cells?
A testable statement in an experiment is called this.
What is a hypothesis?
This is the term for living things in an environment.
What are organisms?
The movement of rock and soil from one place to another is called this.
What is erosion?
Name the three states of matter.
What are solid, liquid, and gas?
Name one example of an inherited trait.
What is eye color (or hair color, etc.)?
In an experiment, this is the factor that changes.
What is the independent variable?
Cutting down trees without replacing them is an example of this.
What is deforestation?
Name the process by which water changes from a liquid to a gas.
What is evaporation?
When light bends as it passes through water or glass, it is called this.
What is refraction?
This is the process by which animals shed their skin, feathers, or exoskeleton.
What is molting?
Tools like rulers, thermometers, and balances help scientists do this.
What is measure?
The air, water, and land around us make up this.
What is the environment?
This term describes the natural cycle in which water moves through the Earth and atmosphere.
What is the water cycle?
This type of energy is stored in food, batteries, and fuels.
What is chemical energy?
In a food chain, animals that eat only plants are called this.
What are herbivores?
When you repeat an experiment to check your results, it is called this.
What is replication?
When harmful substances are added to the air, water, or land, it is called this.
What is pollution?