2023 science 2.1 self test

Question 1

5 examples of matter are
1
2
3
4
5

Answer 1

1. Rice
2. Sugar
3. Wood
4. Milk
5. Air

Question 2

Meniscus

Answer 2

curved top surface of a liquid column

Question 3

Mass

Answer 3

amount of matter in an object

Question 4

freezing point of water

Answer 4

0 degrees celsius

Question 5

buoyancy

Answer 5

upward force of a fluid on an object

Question 6

solid

Answer 6

fixed shape
snowflake
frozen water
round in shape

Question 7

amorphous

Answer 7

no definite geometric shape

Question 8

expands

Answer 8

frozen water

Question 9

gas

Answer 9

molecules far apart

Question 10

Crystalline

Answer 10

definite geometric shape
frozen water
snowflake

Question 11

Chemical property

Answer 11

ability to react with another substance

Question 12

plasma

Answer 12

state in which matter is extremely high in energy and cannot be contained by ordinary matter

Question 13

List 2 general properties of matter
1
2

Answer 13

1. takes up space
2. has a mass

Question 14

List 5 special properties of matter
1
2
3
4
5

Answer 14

1. Shape
2. color
3. odor
4. density
5. taste/ buoyancy

Question 15

Solid

Answer 15

Definite shape
Definite volume

Question 16

Liquid

Answer 16

no definite shape
definite volume

Question 17

Gas

Answer 17

no definite shape
no definite volume

Question 18

Given a block of wood is 2 CM long, 4 CM wide and 3 CM high determine its volume

Answer 18

2 times 4 times 3= 24 CM cubed

Question 19

given a piece of metal with a mass of 112 Grams and a volume of 24 cubic CM… what is the denisty? use the formula
Denisty= Mass divided by volume

Answer 19

112 divided by 24 = 4.7 CM cubed