This is either a push or a pull.
What is a force?
This is Newton's First Law of Motion.
What is, objects in motion tend to stay in motion; objects at rest tend to stay at rest?
A ramp is an example of this simple machine.
What is an inclined plane?
What is negative?
This animal defense mechanism allows an animal to hide by blending in with its surroundings.
What is camouflage?
This is the force that attracts objects to one another--for example, a bowling ball to the Earth's surface!
What is gravity?
This is Newton's Second Law of Motion
What is it takes a force to move an object, or stop one from moving?
A doorknob is an example of this kind of simple machine.
What is a wheel and axle?
A magnet has two poles, one positively-charged and one negatively charged. These are signified by these two mathematical symbols.
What is a "plus" and a "minus" sign?
An animal that eats other animals is called this:
What is a carnivore, or predator?
To move an object, or stop it from moving, you need this.
What is a force?
This is Newton's Third Law of Motion!
What is, "For every action, there is an equal and opposite reaction?"
If you get in an elevator, this simple machine helps you move up and down, by counterbalancing your weight with another.
What is a pulley?
If you have a paper clip made of iron and a paper clip made of plastic, this is the one you would expect to be attracted to a magnet.
What is the paper clip made from iron?
A hawk eats a centipede. In this example, the centipede is the hawk's... this.
What is prey?
This is the force that acts against motion--for example, to stop a soccer ball rolling on grass.
What is friction?
A change in an object's speed is called this.
What is acceleration?
This simple machine contains a fulcrum.
What is a lever?
If you put a negatively charged magnet next to a negatively charged magnet, they will do the following action.
What is repel one another?
When an animal imitates another to stay safe, such as a fly copying the coloration of a honeybee, it is called this defense mechanism.
What is mimicry?
This is the property of matter that makes objects with greater mass tend to be more difficult to move, or to stop from moving.
What is inertia?
What is speed?
What is a fulcrum?
The invisible waves of magnetism surrounding a magnetic object, such as the planet Earth or a classroom magnet, are called the object's this.
What is "magnetic field?"
This word describes the ways animals have evolved to better survive in their environment.
What is "adaptation"?