LIFE SCIENCE
EARTH/SPACE SCIENCE
PHYSICAL SCIENCE
CHEMISTRY
MYSTERY SCIENCE
100

The gas humans breathe and is essential for life.

Oxygen

100

The force that pulls objects toward the center of the Earth?

Gravity

100
The type of energy a moving object has.

Kinetic

100
These are the building blocks of matter.

Atoms

100

The number of bones in the adult human body.

206

200
The organ in your body that is responsible for pumping blood

Heart

200

The planet in our solar system that is known as the "Red Planet".

Mars

200

This type of machine is a seesaw.

Lever

200

A substance made up of two or more different elements chemically combined

Compound

200

This causes the change from day to night on Earth.

The rotation of Earth on its axis.

300

The part of the plant responsible for photosynthesis.

Leaves

300

What we call a scientist who studies rocks?

Geologist

300

The name for the push or pull on an object.

Force

300

This subatomic particle has a negative charge

Electron

300

186,000 miles per second

The speed of light

400

The type of blood cell that helps to fight off infections.

White blood cells.

400
These are the three main types of rocks.
Igneous, Sedimentary, Metamorphic
400

The unit used to measure force (Don't let an apple fall on your head while figuring it out).

Newton

400

The name given to the substances you start with in a chemical reaction.

Reactants

400

NaCl

Table salt (sodium chloride)

500
The term for an animal that can live both in water and on land.

Amphibian

500

The layer of the atmosphere in which we live.

Troposphere

500

This is Newton's second law of motion.

Force = mass x acceleration

500

A kind of change that results in a new substance being formed

Chemical change/reaction

500

This measures how acidic or basic a substance is.

The pH scale