Open Sci Ed U6.1 Lessons 1-2

Front

What happens to light when it hits a one-way mirror?

Back

It transmits a little but reflects a lot of light.

Front

What materials are best for observing the reflection of light?

Back

Candle and mirror.

Front

What is a shadow?

Back

An area that is darker because light is blocked.

Front

What is the variable called that is changed in an experiment to see its effect?

Back

Independent variable.

Front

How does light travel from a flashlight?

Back

In a straight line.

Front

What is reflection?

Back

The bouncing back of light when it hits a surface.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is the difference between independent and dependent variables?

Back

Independent variable is changed by the experimenter; dependent variable is measured.

Front

What is a controlled variable?

Back

A variable that is kept constant during an experiment.

Front

What is the purpose of a science experiment?

Back

To test a hypothesis and observe the effects of changing variables.