Science Review 1.2

Front

What is thermal insulation?

Back

Thermal insulation is the process of reducing the transfer of heat between objects in thermal contact or in range of radiative influence. Insulators are materials that do not conduct heat well.

Front

Which material is a poor thermal insulator?

Back

Aluminum is a poor thermal insulator compared to materials like cardboard, rubber, and plastic.

Front

What is the property of a material that allows it to conduct thermal energy?

Back

Thermal conductivity is the property of a material that allows it to conduct thermal energy.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What happens when an object is less dense than water?

Back

An object that is less dense than water will float on the surface of the water.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is weathering?

Back

Weathering is the breaking down of rocks and minerals through contact with the Earth's atmosphere, waters, and biological organisms.

Front

What is the difference between weathering and erosion?

Back

Weathering involves the breakdown of materials, while erosion involves the movement of those materials from one location to another.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of electric current or thermal energy.

Front

Which of the following is a good electrical insulator?

Back

An eraser is a good electrical insulator.