Atomic Structure & matter
Chemical Reactions
Forces & Motion
Energy & Waves
Cells & Body Systems
100

The negatively charged particle found outside the nucleus

What is an 

Electron

100

A sign of a chemical reaction involving bubbles

What is gas formation?

100

A push or a pull

 What is a force?

100

The ability to do work

What is energy?

100

The basic unit of life

What is a cell?

200

The center of the atom containing protons and neutrons

What is the

Nucleus

200

A law stating mass is not created or destroyed

What is the Law of Conservation of Mass?

200

Motion stays the same unless acted on by a force

What is Newton’s First Law?

200

Energy that comes from motion

What is kinetic energy?

200

The structure that controls the cell

What is the nucleus?

300

A chart that organizes elements by atomic number

What is the periodic table?

300

Vinegar and baking soda is an example of this

What is a chemical reaction?

300

The force that attracts objects to Earth

What is gravity?

300

Heat transfer through direct contact

What is conduction?

300

The process plants use to make food

 What is photosynthesis?

400

A physical property you could observe without changing the substance

What is density, color, mass, or solubility?

400

Increasing this can make reactions happen faster

What is temperature or concentration?

400

What increases when mass increases in gravity

What is gravitational force?

400

The distance between wave crests

What is wavelength?

400

The system responsible for breathing

 What is the respiratory system?

500

The number of protons in an atom that identifies the element

What is the atomic number?

500

The substance you start with in a chemical reaction

What are reactants?

500

Newton’s law that explains action–reaction pairs

What is Newton’s Third Law?

500

Waves that carry information like sound and radio

What are communication waves (or sound/electromagnetic waves)?

500

Organs working together for a common function

What is a body system?

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