Standing in the States
Atomic Theory
Mix it Up!
Physical vs. Chemical Changes
The Heat is On!
100

This state of matter has both a definite shape and a definite volume, like an ice cube or a school desk.

What is a solid?

100

This scientific term refers to anything in the universe that has mass and takes up physical space.

What is matter?

100

A tossed salad or a bowl of cereal and milk are everyday examples of this, where different materials are combined but keep their own properties.

What is a mixture?

100

Breaking a pencil, crumpling a piece of paper, or slicing an apple are all examples of this type of change because no new substance is made.

What is a physical change?

100

Adding heat energy to a solid ice cube will cause it to reach its melting point and transform into this state of matter.

What is a liquid?

200

This state of matter takes the shape of whatever container it is poured into, but it still maintains a fixed, definite volume.

What is a liquid?

200

According to scientific theory, all matter is composed of these incredibly tiny building blocks that are too small to be seen normally.

What are atoms?

200

This is a special type of mixture that forms when one substance breaks down and spreads out completely and evenly inside another substance.

What is a solution?

200

Burning logs in a campfire or baking a cake are examples of this type of change, where completely new substances are created.

What is a chemical change?

200

Removing heat from liquid water until it cools down to 0 degrees Celsius (32 degrees Fahrenheit) will cause it to undergo this physical change.

What is freezing?

300

This state of matter has no definite shape and no definite volume, expanding completely to fill any container it is placed in.

What is a gas?

300

Because atoms are too small to see with the naked eye, scientists must use tools that provide high amounts of this to see small details.

What is magnification?

300

If a scientist mixes iron filings and sand together, they can easily separate them by testing for this physical property of the iron.

What is magnetic attraction (or magnetism)?

300

When an iron playground chain is left out in the rain, it reacts with oxygen and water to create a reddish-brown crust via this chemical change.

What is rusting?

300

Generally, increasing this specific measurement will cause chemical changes (like rusting) and physical changes (like dissolving) to happen much faster.

What is temperature?

400

This basic physical property describes the actual amount of three-dimensional space an object or substance takes up.

What is volume?

400

True or false: When you rip a piece of paper into pieces so tiny you can barely see them, the atoms inside the paper are destroyed. (true or false?)

What is false?

400

Beside heating up the liquid, doing this motion with a spoon will speed up how quickly hot cocoa powder dissolves in milk.

What is stirring?

400

If you mix baking soda and vinegar together, you will instantly see fizzing and bubbles, which is a major clue that this type of change is occurring.

What is a chemical change?

400

This is the specific physical change that happens when liquid water slowly changes into a gas from the surface of a puddle on a sunny day.

What is evaporation?

500

Unlike weight—which changes based on gravity—this property measures the total amount of "stuff" in an object and stays the same anywhere in the universe.

What is mass?

500

This is the official name of the scientific framework explaining that all matter is made up of microscopic, individual particles.

What is the atomic theory?

500

While sugar is highly soluble in water, sand will not dissolve at all, meaning sand is described by this scientific word.

What is insoluble?

500

True or False: When wood burns completely and turns into a small pile of ash, the missing matter was completely destroyed and vanished from the universe.

What is false? (Matter cannot be destroyed; the rest turned into gases like smoke).

500

On a humid morning, water drops form on the outside of a cold lemonade glass because water vapor in the air cools down and undergoes this phase change.

What is condensation?

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