Basic Matter
Elements and compounds
Atoms and Molecules
Pure or mixture
Matter in action
100

This is anything that has mass and volume.

What is matter?

100

A pure substance that cannot be broken down into different substances.

What is an element?

100

The smallest part of an element that still has the properties of that element?

What is an atom?

100

$100
Water is a pure substance or a mixture?

What is a pure substance?

100

Scientists use this organized chart to arrange all the elements according to their properties.

What is the Periodic Table of Elements?

200

This property measures the amount of matter in a 

Answer: What is mass?

200

Water is made of these two elements.

What are hydrogen and oxygen?

200

Two or more atoms joined together chemically form one of these?

What is a molecule?

200

Seawater is a pure substance or a mixture?

What is a mixture?

200

$200
The chemical symbol for oxygen is this one-letter code.

What is O?

300

 This property measures how much space an object or substance takes up.

 What is volume?

300

A substance formed when two or more elements combine chemically.

What is a compound?

300

One water molecule contains two atoms of hydrogen and this many atoms of oxygen.

What is one?

300

Graphite is made of only one element: carbon. Is it an element, compound, or mixture?
 

What is an element?

300

When salt dissolves in water, it forms this type of mixture.

What is a solution?

400

A fish has less of this than an aquarium tank because it contains less matter.


What is mass?

400

This common substance is a compound made of sodium and chlorine.

What is table salt?

400

During a chemical reaction, atoms are broken apart, rearranged, and used to form these.
 

What are new molecules?

400

Lemonade contains water, sugar, and lemons. What type of matter is lemonade?

What is a mixture?

400

When rocks and water are placed together in a fish tank, they combine physically but not chemically. What does this make?

What is a mixture?

500

The tank, water, plants, rocks, and fish in an aquarium all have these two physical properties.

What are mass and volume?

500

Hydrogen and oxygen are gases, but when they chemically combine, they form this liquid compound?

What is water?

500

In a water molecule, these atoms chemically combine to give water properties different from the gases

Answer: What are hydrogen and oxygen atoms?

500

Air contains different gases, including nitrogen, oxygen, and argon. What type of matter is air?

What is a mixture?

500

Fertilizer runoff can add nitrogen and phosphorus to water. These nutrients can cause excessive algae growth, which can reduce the amount of this gas available to aquatic life.
 

What is oxygen?