Jugami › Physical Science
Physical Science
Why things move, stop, glow, buzz, and bounce.
Kick a ball, flip a light switch, or hear thunder roll, and you are watching physical science at work. This free course is for middle schoolers in grades 6–8. Each unit uses everyday examples, safe experiments you can try at home, and a short quiz to check what you learned.
What is physical science?
Physical science is the study of matter and energy, and how they act on each other. It has two big branches.
Physics asks how things move and how energy travels, from a rolling skateboard to light from the Sun. Chemistry asks what stuff is made of and how it changes, like iron rusting or a cake baking.
Scientists learn these things the same way you can: ask a question, test it with an experiment, measure carefully, and see whether the results match your idea.
Units
The first unit is live. More are on the way.
- Live
Forces and Motion
Pushes, pulls, friction, gravity, speed and acceleration, and Newton's three laws, with at-home experiments, an F = ma slider, and a quiz.
- Coming soon
Energy
Kinetic and potential energy, heat, and how energy changes form but is never used up.
- Coming soon
Matter
Atoms, solids, liquids and gases, density, and what happens when things melt, freeze, or boil.
- Coming soon
Waves
Sound, light, and color: how waves carry energy, and why you see lightning before you hear thunder.
About these lessons
Every unit ends with a list of sources so you can check the facts yourself. Experiments use household materials; ask an adult before you start, and keep things that roll or fly away from people and breakable objects.