Chapter 1.3

Question 1

What is material primarily derived from living organisms?

Answer 1

Organic material

Question 2

What is material primarily derived from nonliving matter?

Answer 2

Mineral materials

Question 3

What is a substance composed of decayed organisms’ particles?

Answer 3

Humus

Question 4

What do atoms linked together form?

Answer 4

Molecules

Question 5

What is the measure of the amount of matter in an object?

Answer 5

Mass

Question 6

What measures the pull of gravity on an object?

Answer 6

Weight

Question 7

What is the measure of how tightly packed matter is?

Answer 7

Density

Question 8

What is the amount of space matter takes up?

Answer 8

Volume

Question 9

What is the term for reusing old materials?

Answer 9

Recycling

Question 10

Where can most organic material be found in soil?

Answer 10

Topsoil

Question 11

What is the lower layer of soil that contains less organic material and more mineral material than the top soil?

Answer 11

Subsoil

Question 12

What is the solid rock layer located underneath the subsoil that provides a firm foundation for the earth’s surface?

Answer 12

Bedrock

Question 13

What type of mineral material has the smallest, most tightly packed particles?

Answer 13

Clay

Question 14

What determines the color of soil?

Answer 14

Amount of organic matter and types of minerals

Question 15

What is the chart used to provide standard names and descriptions of soil colors?

Answer 15

Munsell charts

Question 16

What do chemists used to express the degree of acidity or basicity of a substance?

Answer 16

pH scale

Question 17

In which type of soil do plants grow best?

Answer 17

Neutral or slightly acidic