Planets
These are the four planets closest to the Sun
The inner planets
This law says that an object in motion stays in motion unless something stops it.
Newton's 1st law
When forces on an object are equal and there is no movement, the forces are called this.
Balanced forces
These are living parts of an ecosystem, like animals and plants.
Biotic Factors
This bright object in the sky gives Earth light and heat.
The sun
This planet is known as the "Red Planet" and is the last of the inner planets
Mars
If you slide a book across the floor, it eventually stops. This happens because of this force.
Friction
If two people are pushing a box with the same force in opposite directions, the box doesn't move. What kind of forces are these?
Balanced forces
True or False: Water and sunlight are biotic factors.
False
hat do we call water that falls from the sky as rain, snow, sleet, or hail?
Precipitation
Jupiter, Saturn, Uranus, and Neptune are part of this group.
The outer planets
This law explains why we have to push harder to move a heavy object than a light one.
Newton's 2nd law
These types of forces cause an object to start moving, stop, or change direction.
Unbalanced forces
These are nonliving parts of an ecosystem, like water, sunlight, and rocks.
Abiotic Factors
This type of rock forms when melted rock cools and hardens.
Igneous
This is the largest planet in our solar system.
Jupiter
When you jump off a small boat onto a dock, the boat moves backward. This is an example of which law?
Newton's 3rd law
If one person pushes a swing harder than another, the swing moves in that direction. What kind of forces are acting on it?
Unbalanced forces
An animal that eats plants or other animals is called this.
Consumer
What tool do scientists use to look at things that are very, very small?
Microscope
Unlike the inner planets, the outer planets are mostly made of this substance.
Gas
This law says that for every action, there is an equal and opposite reaction.
Newton's 3rd law
True or False: Balanced forces can make an object speed up.
False
A plant makes its own food from sunlight. This means it is a...
Producer
Tiny pieces of rock that break off over time are called this.
Sediment