Science 5.5a

Front

What is density?

Back

Density is the mass of an object divided by its volume. It tells us how much matter is packed into a certain space.

Front

What happens when oil and water are mixed?

Back

Oil and water do not mix because they have different densities. Oil is less dense than water, so it floats on top.

Front

What is magnetism?

Back

Magnetism is a property of some materials that allows them to attract or repel other materials. For example, magnets can attract iron.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a liquid. For example, sugar is soluble in water.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing the substance's identity, such as color, shape, or density.

Front

What is the difference between a solid and a liquid?

Back

A solid has a definite shape and volume, while a liquid has a definite volume but takes the shape of its container.

Front

What does it mean for an object to sink or float?

Back

An object sinks if it is denser than the liquid it is in, and it floats if it is less dense than the liquid.

Front

What is a solution?

Back

A solution is a mixture where one substance (the solute) is completely dissolved in another (the solvent), like salt in water.

Front

What is the role of a hand lens in observing objects?

Back

A hand lens magnifies objects, making it easier to see small details.

Front

What is the purpose of using a magnet in experiments?

Back

A magnet is used to test if an object is magnetic, meaning it can be attracted to the magnet.