Q3: Lesson 1 | Matter

Question 1

Study of matter and the changes it undergoes.

Answer 1

chemistry

Question 2

matter with constant composition

Answer 2

substance

Question 3

matter with variable composition

Answer 3

mixture

Question 4

substance made up of atoms with the same atomic number

Answer 4

element

Question 5

substance made from two or more elements chemically combined

Answer 5

compound

Question 6

simplest form of substance

Answer 6

elements

Question 7

pure substances that are the unions of two or more elements

Answer 7

compounds

Question 8

A mixture in which the composition of materials
is uniform throughout.

Answer 8

homogenous mixture

Question 9

The particles that make up the mixture are very
small and not easily recognizable.

Answer 9

homogeneous mixture

Question 10

is a type of homogeneous mixture that
is formed when one substance dissolves another
substance.

Answer 10

solution

Question 11

the particles are mixed
together but not dissolved.

Answer 11

colloid mixtures

Question 12

The particles are relatively large and kept
permanently suspended.

Answer 12

colloids

Question 13

will not
separate upon standing.

Answer 13

colloids

Question 14

The particles are
constantly colliding, and
this allows a colloid to
scatter light – thus
it often seem
cloudy.

Answer 14

colloids

Question 15

heteregeneous mixture with big particles that settle out when left undisturbed

Answer 15

suspension

Question 16

liquids that need to be shaken well before using

Answer 16

suspension