Changes in matter
Mechanical mixtures & solutions
The periodic table
Mixtures and Pure substances
Particles
100

What is it called when a liquid turns into a gas?

What is evaporation.

100

Is a steel pot a mechanical mixture?

No it is a solution.

100

How many of each element are in H2,0

H=2, O=1

100

what is one thing that appear pure substance and a mixture have in common

 color and weight

100

How does temperature affect the particles in a liquid?

If a liquid gets heated the particles move further apart, when a liquid gets cooled the particles move closer together.

200

What is it called when a solid turns into a liquid?

What is melting.

200

 Is hot chocolate a mechanical mixtures or a solution?

Hot chocolate is a solution.

200

What are the elements in sugar?

Carbon,hydrogen and Oxygen.

200

What is a compound?

A compound is a pure substance made up of two or more different elements that are chemically bonded together.

200

If one kind of particles gets mixed with another what is that called?

It is called a mixture.

300

What happens to the particles in a liquid when it turns into a solid?

The particles slow down and become tightly packed together.

300

How can you tell that a mixture is mechanical?

You can tell that a mixture is mechanical when you can see the components.

300

What elements are in baking soda?

The elements in baking soda are Sodium,Hydrogen,Carbon and Oxygen.

300

What is the difference between a mixture and a pure substance?

The difference between a mixture and Pure substance is, a pure substance is made up of only one kind of particle, a mixture is made up of 2 or more particles.

300

How many types of particles can be in a mixture?

There can be two or more types of particles in a mixture.

400

What is matter?

Matter is anything that has mass and takes up space.

400

What is the difference between mechanical mixtures and solutions?

The difference is that in a solution you can't tell that its a mixture, but in a mechanical mixture you can see the components.

400

What is the meaning of na?

The meaning of na is sodium.

400

Is oxygen a pure substance or a mixture?

Oxygen is a pure substance.

400

What happens to particles when a substance is heated or cooled?

When heated particles move faster and spread apart,when cooled the particles slow down and get closer together.

500

How does matter change when you take a step?

The air particles around you will interact with the ground gaining kinetic energy.

500

Are more mechanical mixtures found naturally or man made?

More mechanical mixtures are found naturally.

500

What are the elements of CO2?

The elements of CO2 is Carbon and Oxygen.

500

Is gold a pure substance or a mixture?

gold is a mixture .

500

Are particles ever touching?

Technechly no, particles aren't touching.