Planets
The planet known as the "Red Planet".
Mars
What natural object orbits the Earth?
Moon
A force that pulls objects toward the Earth.
Gravity
The unit we use to measure force.
Newtons
The largest planet in our solar system.
Jupiter
The Sun is this type of object in space.
Star
The force that slows down objects moving across a surface.
Friction
When two forces on an object are equal in size but opposite in direction, the forces are...
Balanced
This planet has rings made of ice and rock.
Saturn
Earth's rotation causes what on Earth?
Day and night
This force pushes things upward in water or air.
Buoyancy
A parachute slows a skydiver using this force.
air resistance
The name of the dwarf planet that used to be considered the ninth planet.
Pluto
The reason we have different seasons.
Earth's axis
This type of force happens when two objects touch.
Contact force
This is what happens when unbalanced forces act on an object.
Change in motion
the third planet from the Sun
Earth
What do we see in the sky over a month cycle in the changing position of the Moon, Earth, and Sun?
A type of force that acts without needing contact, like magnetism.
Non-contact force
The tool used to measure force.
spring balance