Question 1

Which of the following is NOT mater?

Accepted Answer

ultraviolet radiation

Answer

atoms

Answer

the Sun

Answer

air

Question 2

At the end of an experiment the scientist forms a conclusion based on the

Accepted Answer

data obtained

Answer

scientific law

Answer

variable

Answer

control

Question 3

Which of the following is a set of controlled observation that tests a hypothesis?

Accepted Answer

experiment

Answer

weight

Answer

mass

Answer

constant

Question 4

The branch of chemistry that focuses on carbon-containing chemicals is called

Accepted Answer

organic chemistry

Answer

analytical chemistry

Answer

inorganic chemistry

Answer

biochemistry

Question 5

How should you prepare an acid solution?

Accepted Answer

Add the acid to the water very slowly

Answer

add the acid to the water all at once

Answer

add the water to the acid very slowly

Answer

add the water to the acid all at once

Question 6

The SI base unit of time is the

Accepted Answer

second

Answer

kilogram

Answer

liter

Answer

meter

Question 7

The SI base unit for length is the

Accepted Answer

meter

Answer

density

Answer

liter

Answer

kilogram

Question 8

The SI base unit for mass is the

Accepted Answer

kilogram

Answer

second

Answer

liter

Answer

meter

Question 9

The SI derived unit for volume is the

Accepted Answer

liter

Answer

meter

Answer

density

Answer

kilogram

Question 10

... is a ratio that compares the mass of an object to its volume

Accepted Answer

density

Answer

meter

Answer

kilogram

Answer

second

Question 11

Which of the following is a compound

Accepted Answer

salt

Answer

air

Answer

nickel

Question 12

Which of the following is a homogeneous mixture?

Accepted Answer

air

Answer

nickel

Answer

silicon

Question 13

Which of the following is an element?

Accepted Answer

gold

Answer

salt

Answer

brass

Question 14

Breaking a pencil in half would be a

Accepted Answer

physical change

Answer

chemical change

Question 15

Wood burning is considered a

Accepted Answer

chemical change

Answer

physical change

Question 16

Silver tarnishing would be a

Accepted Answer

chemical change.

Answer

physical change.

Question 17

Ice melting is a form of

Accepted Answer

physical change.

Answer

chemical change.

Question 18

Stainless steel is what type of mixture?

Accepted Answer

homogeneous

Answer

heterogeneous

Question 19

Granite is what type of mixture?

Accepted Answer

Heterogeneous

Answer

Homogeneous

Question 20

Air is considered what kind of mixture?

Accepted Answer

Homogeneous

Answer

Heterogeneous

Question 21

Which element has the atomic number of 27?

Accepted Answer

Cobalt

Answer

Silicon

Answer

Iron

Answer

Aluminum

Question 22

Which element has 33 protons?

Accepted Answer

Arsenic

Answer

Argon

Answer

Sulfur

Answer

Calcium

Question 23

Which element has 15 protons and 15 electrons?

Accepted Answer

Phosphorus

Answer

Oxygen

Answer

Silicon

Answer

Sulfur

Question 24

Which element has an atomic number of 55?

Accepted Answer

Cesium

Answer

Copper

Answer

Rubidium

Answer

Iron

Question 25

Which sub-atomic particle has a negative charge?

Accepted Answer

electron

Answer

neutron

Answer

proton

Answer

positron

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