1.
Anything that takes up space and has mass.
2.
The smallest unit of matter.
3.
A force that pulls objects toward each other, especially toward Earth.
4.
A force that slows down objects when they rub against each other.
5.
A push or pull that can make an object move or change direction.
6.
The ability to do work or cause change, like moving or heating something.
7.
A community of living and nonliving things interacting in an environment.
8.
A living thing, like a plant, that makes its own food.
9.
A living thing that eats other living things for energy.
10.
A living thing, like fungi or bacteria, that breaks down dead things.
11.
The process of liquid water turning into gas (water vapor).
12.
The process of gas (water vapor) cooling and turning into liquid.
13.
The condition of the atmosphere at a specific time and place, like temperature and precipitation.
14.
The average weather patterns in a place over a long period of time.
15.
The process by which plants use sunlight, water, and carbon dioxide to make their own food.
