Matter States and Properties Content

Question 0

Identify which of the following substances are elements, and which of the following are compounds.

Carbon, Carbon Dioxide, Oxygen, Sugar, Platinum, Pure Water, Salt, Uranium

Answer 0

Element- One type of atom
Carbon, Oxygen, Platinum, Uranium

Compound- More than one atom
Carbon Dioxide, Sugar, Pure Water, Salt

Question 1

Label each of the following as either a pure substance, or a mixture.

Air, Carbon Dioxide, Fruit Juice, Gold, Kool-Aid, Oxygen, Pure Water, Tap Water.

Answer 1

Pure Substances- Definite Composition
Carbon Dioxide, Gold, Oxygen, Pure Water

Mixture- Uncertain Composition
Air, Fruit Juice, Kool-Aid, Tap Water

Question 2

What elements have the following chemical symbols.

Au, Ag, C, Al, Si, O, N, H

Answer 2

Gold, Silver, Carbon, Aluminum, Silicon, Oxygen, Nitrogen, Hydrogen

This information can be found using the periodic table.

Question 3

What is the type of mixture for each of the following substances?
Answer Choices: Solution, Suspension, Colloid

Bubble Bath, (Fine) Dust in the Air, Fog, Gatorade, Salad Dressing, Salt Water

Answer 3

Colloid- Fog, Dust in the Air- Generally consistent with visible “floaters”.

Solution- Gatorade, Salt Water- Can’t see parts

Suspension- Bubble Bath, Salad Dressing- Settles in layers

Question 4

Identify the following as a heterogenous, or homogenous mixture.

Dishwater, Glue, Salt Water, Sand, Sugar Water, V8 Juice

Answer 4

Heterogenous- Can or will see the parts

Dishwater, Sand, V8 Juice

Homogenous- Parts not visible, will not separate

Glue, Salt Water, Sugar Water

Question 5

Use two of the materials from the list below for an example of something that is very viscous, and something that is not very viscous.

Chalk, Copper, Diamond, Glass, Helium, Hydrogen, Lead, Neon, Sodium, Syrup, Water, Wool

Answer 5

Water flows easier and is less viscous than syrup.

Question 6

Use two of the materials from the list below for an example of something that is a good conductor, and something that is a good insulator.

Chalk, Copper, Diamond, Glass, Helium, Hydrogen, Lead, Neon, Sodium, Syrup, Water, Wool

Answer 6

Copper transfers heat and electricity well so it is a good conductor. Wool does not transfer heat and electricity well so it is a good insulator.

Question 7

Use two of the materials from the list below for an example of something that is very malleble, and something that is not very malleable.

Chalk, Copper, Diamond, Glass, Helium, Hydrogen, Lead, Neon, Sodium, Syrup, Water, Wool

Answer 7

Copper can be easily pounded into thin sheets and is malleable.
Glass shatters when pounded, and is not malleable.

Question 8

Use two of the materials from the list below for an example of something that is very hard, and something that is very soft.

Chalk, Copper, Diamond, Glass, Helium, Hydrogen, Lead, Neon, Sodium, Syrup, Water, Wool

Answer 8

Diamond does not scratch and is very hard.

Chalk scratches easily and is soft.

Question 9

What is the melting and boiling point of water?

Answer 9

Water melts at 0 degrees Celsius, and boils at 100 degrees Celsius.

Question 10

Explain how a coffee filter works, and tell what it does for your coffee.

Answer 10

Coffee filters separate mixtures by particle size. The filter keeps the large grounds out of the coffee, giving the liquid a smooth texture.

Question 11

Determine if each one of the following changes is a chemical. or physical change.

Baking Food, Boiling Water, Burning Paper, Digesting Food (non mechanical), Filtering Water, Sawing Wood

Answer 11

Chemical Change- Change in chemical make-up of substance.

Baking Food, Burning Paper, Digesting Food

Physical Change- Same substances, different form.

Boiling Water, Filtering Water, Sawing Wood

Question 12

Phase of matter with a definite volume and shape.

Answer 12

Solid

Question 13

Phase of matter with a definite volume, but no definite shape.

Answer 13

Liquid

Question 14

Phase of matter with no definite volume or shape.

Answer 14

Gas

Question 15

What causes air pressure?

Answer 15

The bumping of air molecules into the side of a container.

Question 16

What would happen to the temperature of a gas as the volume of a gas is decreased? Assume constant pressure.

Answer 16

As volume is decreased temperature increases.

This is an example of an inverse relationship.

Question 17

What would happen to the pressure of a gas if the temperature is increased?

Answer 17

The pressure of the gas would increase as the temperature is increase.

This is a direct relationship.

Question 18

Why does the temperature of a substance that is going through a phase change remain constant.

Answer 18

The energy is being used to transform the substance into another phase.

Question 19

Using the correct terms describe what happens when a gas turns into a solid and back again.

Answer 19

Gas condenses into a liquid. The liquid freezes into a solid. The solid melts into a liquid, and the liquid evaporates into a gas.

Or Gas turns into a solid through deposition. The solid sublimates into a gas.

Question 20

Use two of the materials from the list below for an example of something that is very flammable.

Chalk, Copper, Diamond, Glass, Helium, Hydrogen, Lead, Neon, Sodium, Syrup, Water, Wool

Answer 20

Hydrogen. Because it combines easily with Oxygen.