6th Grade Science Review

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light or infrared radiation. An example is feeling warmth from the sun.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. An example is a metal spoon getting hot when placed in a hot soup.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). An example is warm air rising and cool air sinking.

Front

Is digesting food a physical or chemical change?

Back

Chemical change.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split or lift objects. It has a thick end and a thin end, like a doorstop.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances, often with different properties.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What happens when baking soda and vinegar mix?

Back

When baking soda and vinegar mix, a chemical reaction occurs that produces carbon dioxide gas, resulting in bubbles.

Front

What is an example of a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. An example is a seesaw.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects. An example is a ramp.