Matter

Question 1

The density of a block of wood with a volume of 50 cubic centimeters and a mass of 100 grams is

Accepted Answer

2 g/cm3

Question 2

To find the mass of a rectangular object, you multiply the object’s length, width, and height.

Accepted Answer

False, Volume

Question 3

One example of a physical change is

Accepted Answer

Dissolving salt in water

Question 4

The tarnishing of metal is an example of a(n) ____________________ change.

Accepted Answer

Chemical

Question 5

If you heat a liquid and measure the temperature at which it boils, you are measuring a(n)

Accepted Answer

physical property.

Question 6

The amount of matter in an object.

Accepted Answer

Mass

Question 7

How would you calculate the density of an object?

Accepted Answer

Divide its mass by its volume.

Question 8

If you describe methane as a gas that easily catches fire, you are describing a

Accepted Answer

chemical property.

Question 9

A(n) ___ is formed when two substances are so evenly mixed that you can’t see different parts.

Accepted Answer

Homogeneous

Question 10

A group of two or more elements held together by a chemical bond.

Accepted Answer

Molecule

Question 11

Two or more substances together in the same place but their atoms are not chemically bonded.

Accepted Answer

Mixture

Question 12

The basic particle from which all elements are made of.

Accepted Answer

Atom

Question 13

Hardness, texture, color, and freezing point are examples of ______ properties of matter.

Accepted Answer

Physical

Question 14

One example of a chemical change is

Accepted Answer

Burning wood

Question 15

The measure of the mass of a material in a given volume.

Accepted Answer

Density

Question 16

A substance that undergoes a chemical change is still the same substance after the change.

Accepted Answer

False, Physical

Question 17

Dissolving a spoonful of sugar in tea or coffee is an example of a(n) _______ change.

Accepted Answer

Physical

Question 18

Fireworks exploding in the sky and giving off light are an example of a(n)

Accepted Answer

exothermic change.

Question 19

Drop a marble in a glass of water, the marble will sink because its ____ is greater than water.

Accepted Answer

Density

Question 20

Every form of matter has two kinds of properties—physical properties and ______ properties.

Accepted Answer

Chemical

Question 21

Matter is not created or destroyed in any chemical or physical change is called the _____.

Accepted Answer

Law of Conservation of Mass

Question 22

In a(n) ____________________ mixture, like a salad, you can see the different parts.

Accepted Answer

Heterogeneous

Question 23

The units liter, milliliter, and cubic centimeter are used to measure the _____ of an object.

Accepted Answer

Volume

Question 24

What holds atoms together in a molecule?

Accepted Answer

Chemical Bonds

Question 25

A substance that cannot be broken down into any other substances by chemical or physical means.

Accepted Answer

Element

Question 26

The amount of space that matter occupies.

Accepted Answer

Volume

Question 27

A single kind of matter that is pure, meaning it always has a specific makeup or composition.

Accepted Answer

Substance

Question 28

Soil, a salad, and sugar water are all examples of

Accepted Answer

Mixtures

Question 29

Anything that has mass and takes up space.

Accepted Answer

Matter

Question 30

H2O, CO2, and C12H22O11 are all examples of chemical

Accepted Answer

Formulas

Question 31

How do liquid water, ice, and water vapor differ from each other?

Accepted Answer

Different States of Matter

Question 32

A change that produces one or more new substances is called a physical change

Accepted Answer

False, Chemical

Question 33

Table salt and water are examples of

Accepted Answer

Substances

Question 34

A substance made of two or more elements that are chemically combined in a set ratio.

Accepted Answer

Compound

Question 35

The SI unit for mass is the

Accepted Answer

Kilogram

Matter

Questions 35

Matter

Questions 35