It's Just A Phase!
Dense or Not?
Chemistry in Action
It's a Force of Course
Meet the Metals!
100

The three most common states of matter.

What are solid, liquid, and gas?

100

Density compares these two measurements.

What are mass and volume?

100

A change that creates a new substance is called this.

What is a chemical change?

100

A push or a pull.

What is a force?

100

This group of elements is shiny, conducts heat, and is malleable.

What are metals?

200

This state of matter has a definite shape and definite volume.

What is a solid?

200

An object will do this if its density is greater than water.

What is sink?

200

Bubbles forming during a reaction often means this is occuring.

What is a chemical change?

200

This force pulls objects towards the center of Earth.

What is gravity?

200

These elements are dull, brittle, and poor conductors.

What are nonmetals?

300

This change occurs when a solid turns directly into a gas.

What is sublimation?

300

The formula for density.

What is D= m/v?

300

These are signs of a chemical change.

What are bubbles forming, color changing, or temperature changing? 

300

The force that slows objects when surfaces rub together.

What is friction?

300

These elements have properties of both metals and nonmetals.

What are metalloids?

400

This process is the opposite of evaporation.

What is condensation?

400
This is why a giant cruise ship can float even though it's made of metal.

What is its overall density is less than water?

400

When two liquids mix and form a solid.

What is a precipitate?

400

This force acts against motion and slows objects down.

What is friction?

400

Silicon (Si) is the most famous example of this group.

What is a metalloid?

500

The temperature at which a liquid becomes a gas.

What is the boiling point?

500

If you cut an object in half, this property stays the same.

What is density?

500

When iron reacts with oxygen over time, this flaky reddish substance forms.

What is rust?

500

This type of force happens when two objects are not touching, like gravity and magnetism.

What is a non-contact force?

500

The zigzag line on the periodic table is important because it divides which two main groups of elements?

What are metals and nonmetals?