Science 3 Recall Activity

What state of matter maintains its shape?

• Solid

• Liquid

• Gas

• Water

Answer explanation

A solid maintains its shape because its particles are closely packed together and vibrate in place, unlike liquids and gases, which take the shape of their container.

What state of matter takes the shape of its container?

• Solid

• Liquid

• Gas

• Rock

Answer explanation

Liquids take the shape of their container because their molecules are close together but can move freely, allowing them to flow and adapt to the shape of the vessel they are in. Solids maintain their shape, while gases fill the entire space.

Which of the following is a gas?

• Ice

• Milk

• Air

• Juice

Answer explanation

Air is a mixture of gases, primarily nitrogen and oxygen, making it the only gas among the options. Ice is solid, milk is a liquid, and juice is also a liquid.

What happens when ice melts?

• Becomes gas

• Becomes liquid

• Remains solid

• Becomes powder

Answer explanation

When ice melts, it absorbs heat and changes from a solid state to a liquid state. Therefore, the correct answer is that it becomes liquid.

What is an example of a liquid?

• Pencil

• Juice

• Balloon

• Rock

Answer explanation

Juice is a liquid, as it flows and takes the shape of its container. In contrast, pencil, balloon, and rock are solid objects and do not exhibit the properties of liquids.

What is an example of a solid?

• Oil

• Air

• Spoon

• Water

Answer explanation

A spoon is a solid object, typically made of metal or plastic, with a definite shape and volume. In contrast, oil, air, and water are liquids or gases, which do not have a fixed shape.

What do we call it when water turns into steam?

• Dissolving

• Freezing

• Evaporation

• Condensation

Answer explanation

When water turns into steam, it undergoes a process called evaporation. This occurs when water molecules gain enough energy to transition from a liquid state to a gaseous state, forming steam.

What happens when water freezes?

• Turns to gas

• Turns to solid

• Turns to air

• Disappears

Answer explanation

When water freezes, it undergoes a physical change and turns into a solid state, known as ice. This is the correct answer, as the other options do not accurately describe the freezing process.

Which of these is NOT solid?

• Book

• Chair

• Water

• Rock

Answer explanation

Water is a liquid at room temperature, while a book, chair, and rock are all solid objects. Therefore, water is the correct answer as it is NOT solid.

What state of matter spreads to fill the space?

• Solid

• Liquid

• Gas

• Ice

Answer explanation

Gas is the state of matter that spreads to fill the entire space available to it, unlike solids and liquids which maintain a fixed volume and shape.