The food making process in plants.
What is Photosynthesis?
A push or a pull that causes an object to move.
What is a force?
The source of our planet's energy.
What is the sun?
A seesaw is a classic example of this simple machine.
What is a lever?
This man was the first human to walk on the moon.
Who is Neil Armstrong?
All of the populations in an area.
What is community?
A glowing light bulb has this kind of circuit.
What is closed?
Shortest at lunchtime, longer in the morning and afternoon.
What are Shadows?
A grooved wheel and rope used to lift heavy loads.
What is a pulley?
The chemical formula for water.
What is H2O?
The preserved remains of once living organisms.
What are fossils?
The repeated image that forms in a mirror.
What is a reflection?
The blanket of gases that surround the earth.
What is the Atmosphere?
A machine made up of two or more simple machines.
What is a compound machine?
The study of earthquakes.
What is Seismology?
Animals without a backbone.
What is invertebrate?
A special mixture where the particles dissolve and mix evenly.
What is a Solution?
Rain, snow, hail and sleet.
What is precipitation?
This professional designs, builds, and maintains engines, machines or structures.
What is an engineer?
The largest mammal that has ever lived.
What is a Blue Whale?
Plants get most of the material they need from these two substances.
What is air and water?
When a reaction occurs and one or more new substances are produced.
What is a Chemical Change?
Percent of water on earth that is fresh water.
What is 3%?
A pair of scissors is a compound machine made of these two simple machines.
What are levers and a wedge?
The five States of Matter.
Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate.