material

Question 1

Substance

Answer 1

type of matter with a fixed composition that cannot be separated

Question 2

what are two types of substances?

Answer 2

element, compound

Question 3

Element

Answer 3

substance made of atoms with same identity (ex. carbon, hydrogen)

Question 4

Compound

Answer 4

atoms of two or more elements combined (ex. water- H2O)

Question 5

Mixture

Answer 5

materials made of two or more substances that CAN be separated by physical means

Question 6

What are the two types of mixtures?

Answer 6

heterogeneous, homogeneous

Question 7

Heterogeneous

Answer 7

Mixture in which different materials can be easily distinguished (ex. pizza)

Question 8

Homogeneous

Answer 8

mixture in which two or more substances are uniformity spread out (ex. salt water, vinegar)

Question 9

Four ways of separating mixtures

Answer 9

filtration, magnetic attraction, evaporation, and distillation

Question 10

a mixture is classified as what

Answer 10

solution, colloid, or suspension

Question 11

Solution

Answer 11

• Homogeneous
• particle size- cant be seen with a microscope
• particle don’t settle
• particles don’t scatter light

Question 12

Colloid

Answer 12

• Heterogeneous
• particles are larger than those in a solution
• particles don’t settle
• particles can scatter light

Question 13

Suspension

Answer 13

• Heterogeneous
• particles are visible
• particles can settle
• particles may or may not scatter light

Question 14

Tyndall effect

Answer 14

Scattering of light when shining it at a colloid