It's Electric
Subatomic particles that orbit the nucleus of an atom.
What are electrons?
Power obtained by harnessing the energy of the sun's rays.
The network of organs and tissues that help you breathe.
What is the respiratory system?
(of a species) seriously at risk of extinction.
What is endangered?
The center of our solar system.
What is the sun?
A roughly circular line, route, or movement that starts and finishes at the same place
Electricity produced from generators driven by turbines that convert the potential energy of falling or fast-flowing water.
What is hydropower?
It is made up of blood vessels that carry blood away from and towards the heart.
What is the circulatory system?
An animal or person that eats food of both plant and animal origin.
What is an omnivore?
This divides the rocky planets from the gas giants.
What is the asteroid belt?
These cells come in different sizes like D, C and AA.
What are batteries?
Splitting an atom causes this type of energy to be released.
What is nuclear energy?
This occurs when the blood supply to part of your brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients.
What is a stroke?
A person or thing that eats or uses something.
What is a consumer?
This telescope hitched a ride into space on the Discovery.
What is the Hubble?
Adding another bulb won't make anything brighter or dimmer with one of these.
What is a parallel circuit?
Energy from a source that is not depleted when used.
What is renewable energy?
Any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
What are veins?
A biological community of interacting organisms and their physical environment.
What is an ecosystem?
This Italian astronomer is considered the founding parent of modern day astronomy.
Who is Galileo?
This is what the D stands for in DC.
We have the heat within the earth to thank for this type of energy.
What is geothermal?
These cells are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
What are neurons?
A hierarchical series of organisms each dependent on the next as a source of food.
What is a food chain?
A region of space having a gravitational field so intense that no matter or radiation can escape.
What is a black hole?