LIFE
When an animal no longer exists.
What is extinct?
The energy of motion.
What is kinetic energy?
Fossil fuels like coal, oil and natural gas.
What are non-renewable resources?
A playground slide and a wheelchair ramp are examples.
What is an inclined plane?
The hardest natural substance on earth.
What is a Diamond?
Plants and animals inherit these from their parents.
What are traits?
Any material that allows electricity to pass through it.
What is a conductor?
The proper name for the North Star commonly used by explorers to navigate.
What is Polaris?
Wide at one end and pointed at the other and used to split or push things apart.
What is a wedge?
An object in space that is so dense that not even light can escape its gravity.
What is a Black Hole?
An animal's role in an ecosystem.
What is a niche?
Sound reflected from a surface.
What is an echo?
The coldest desert on earth.
What is Antarctica?
The two front tires of a car are an example of this simple machine.
What is a wheel and axle?
The two particles found inside the nuclei of atoms.
What are protons and neutrons?
Non living material.
What is abiotic?
Produces all sound.
What are vibrations?
Soil, rock and sediment worn away by water, wind or ice.
What is erosion?
Newspaper cartoonist who drew pictures of extremely complex machines that were built to perform a simple task.
Who is Rube Goldberg?
The bending of light when it changes speed or direction.
What is Refraction?
Occurs when bacteria consume all of the oxygen in an area of the ocean.
What is a Dead Zone?
When a reaction occurs and one or more new substances are produced.
What is a chemical change?
The four spheres of earth.
What are biosphere, atmosphere, hydrosphere and geosphere?
The fixed point that a lever pivots or balances on.
What is a fulcrum?
Animals with pouches.
What is a Marsupial?