Stickler #6 Review

Front

What is density?

Back

Density is the mass of an object divided by its volume, usually expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

What happens to an object with a density greater than water?

Back

An object with a density greater than water (1 g/mL) will sink when placed in water.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

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 is an example of a physical change?

Back

An example of a physical change is melting ice into water.

Front

What is a chemical compound?

Back

A chemical compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between a compound and a mixture?

Back

A compound is made of two or more elements chemically combined, while a mixture is a combination of substances that can be separated.

Front

What tools can be used to separate a mixture of sand and iron filings?

Back

A magnet can be used to attract iron filings, and a filter can separate sand from water.

Front

What is the principle of buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, determined by the object's density compared to the fluid's density.

Front

What is an example of evidence of a physical change?

Back

An example of evidence of a physical change is a change in shape, such as cutting paper.