4th/5th Grade: Big Ideas 8 & 9

Front

What is volume?

Back

Volume is the amount of space that a substance (solid, liquid, gas) occupies, usually measured in liters or cubic units.

Front

Which container holds the greatest volume of water?

Back

The container that can hold the most water is the one with the largest capacity.

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

Give an example of a physical change.

Back

Melting ice is an example of a physical change; the ice changes from solid to liquid but remains water.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change; it transforms into ash and smoke.

Front

How can mixtures be sorted?

Back

Mixtures can be sorted by various properties such as size, shape, color, or texture.

Front

What is the best way to sort a mixture of shells?

Back

The best way to sort a mixture of shells is by color.

Front

What is surface area?

Back

Surface area is the total area that the surface of an object occupies.

Front

How does surface area affect the rate of dissolving?

Back

The smaller the surface area, the slower the rate of dissolving; larger surface areas dissolve faster.