Earth's Systems
What layer of Earth is composed of solid iron and nickel?
Inner core
What is the term for a substance made of only one type of atom?
An element
What term describes an organism that makes its own food?
A producer
What is the term for the path one object takes around another object in space?
An orbit
hat is the first step in the scientific method?
Asking a question
Which process describes the movement of water through the atmosphere, land, and oceans?
The water cycle
Which state of matter has a definite shape and volume?
A solid
Which type of organism breaks down dead matter?
Decomposer
Why can you not "fall off the face of the Earth?"
Because the force of gravity moves us towards the center of the Earth
What is a possible explanation for a problem that can be tested?
Hypothesis
What term refers to the long-term weather patterns in a particular area?
Climate
What form of energy is produced by vibrating objects?
Sound energy
What is the term for a group of different species living together in an area?
A community
What is the name of Earth's natural satellite?
The moon
What term describes the factor that is measured in an experiment?
Dependent variable
Which type of rock forms from the cooling and solidification of magma?
Igneous rock
What is the term for a change in matter that produces new substances?
Example: baking soda and vinegar
Chemical change
What is the process by which plants make their own food using sunlight?
Photosynthesis
What force keeps planets in orbit around the Sun?
Gravity
What is the factor that is changed in an experiment?
independent variable
What is the process by which plants release water vapor into the atmosphere?
Transpiration
What is the energy source for the water cycle?
Solar energy
What term describes the role an organism plays in its environment?
A niche
What is the term for the spinning of Earth on its axis?
Rotation
What is the term for repeating an experiment to confirm results?
Replication