Bio
What is the basic unit of life?
Cell
What force pulls objects toward the Earth?
Gravity
What layer of Earth do we live on?
Crust
What is the chemical formula for water?
Hâ‚‚O
What do we call organisms that make their own food?
Producers
What part of the cell is responsible for controlling what enters and leaves?
Cell membrane
What is the term for the rate of change of velocity?
Acceleration
What is the process by which water vapor cools and changes into liquid water?
Condensation
What do we call a substance made of two or more elements that are chemically bonded?
Compound
What is the term for the role an organism plays in its ecosystem?
Niche
What process do plants use to convert sunlight into energy?
Photosynthesis
What is Newton's third law of motion?
For every action, there is an equal and opposite reaction
What causes day and night?
The rotation of the Earth on its axis
What is the pH scale used to measure?
Acidity or alkalinity
What is biodiversity?
The variety of life in a particular habitat or ecosystem
What is the function of mitochondria?
To produce energy for the cell
What is friction?
The force that opposes motion between two surfaces
What is the name of the largest planet in our solar system?
Jupiter
What are the three states of matter?
Solid, liquid, gas
What is a food chain?
A series of organisms each dependent on the next as a source of food