SCIENCE REVIEWPlease take notes

• The materials needed to build a circuit that would demonstrate flow of energy are: battery, bulb, switch, and copper wire.

• When light hits a mirror at an angle, it reflects in the opposite direction.

• A shiny piece of metal would reflect more light than a wall painted gray, a black road, or a piece of paper.

• An object in a clear container of water doesn’t line up because light rays change direction in the water.

• Water in a still pond would reflect light so that it creates a mirror-like image.

• Light energy is the power source for a solar-powered calculator.

• Light travels in a straight line unless it travels through something else. To demonstrate this, you would need only a prism and a flashlight.

• A fan and a pencil sharpener use electrical energy to move.

• If the battery of an electromagnet feels too hot to handle, you should stop and tell a teacher.

• Objects like saltwater and aluminum foil conduct electricity, but wood chips, sand, and grass do not.

• When water goes through turbines in a hydroelectric power plant, the turbines use mechanical energy to produce electricity.

• To record information for an investigation on refraction, you would need a flashlight, prism, and a notebook.

• You will need to know how to create a closed circuit that would produce sound.

• Know the definition and examples of mechanical energy, thermal energy, and electrical energy (hint: use your textbook)

• Be able to draw and explain how a beam of light changes into a rainbow when it goes into a new medium (prism).