Science B Revision Unit 1 Theme 1

Question 1

Hydrocarbon fuels only contain

Accepted Answer

hydrogen and carbon

Question 2

Planet Earth is between which two planets?

Accepted Answer

Venus and Mars

Question 3

Red Shift helps to support the theory called the

Accepted Answer

Big Bang

Question 4

The age of the earth is approximately how many years old?

Accepted Answer

4.5 billion

Question 5

During a chemical reaction, there is a law that mass is

Accepted Answer

conserved

Question 6

The large sections of the Earth's crust are called

Accepted Answer

tectonic plates

Question 7

The atomic number of an element is the number of

Accepted Answer

protons

Question 8

The movement of tectonic plates is caused by

Accepted Answer

convection currents in the mantle

Question 9

The hard rocky surface of the Earth is called the

Accepted Answer

crust

Question 10

The Earth's early atmosphere was mainly

Accepted Answer

carbon dioxide

Question 11

At the centre of our solar system is

Accepted Answer

The Sun

Question 12

The nearest planet to our Sun is

Accepted Answer

Mercury

Question 13

Useful materials can be extracted from the ground by

Accepted Answer

mining, quarrying

Question 14

The centre of the Earth is called the

Accepted Answer

core

Question 15

When writing a chemical equation in symbols, it is important that the equation is

Accepted Answer

balanced

Question 16

The furthest (official) planet from the Sun in our Solar System is

Accepted Answer

Neptune

Question 17

Metals more reactive than carbon can be extracted from their ores by using

Accepted Answer

electrolysis

Question 18

The process of extracting useful substances from crude oil is called

Accepted Answer

fractional distillation

Question 19

The best way to observe the solar system is using a

Accepted Answer

telescope

Question 20

We can tell galaxies are moving away from us by something called

Accepted Answer

Red shift

Question 21

A substance with only one type of atom is called

Accepted Answer

an element

Question 22

The section of the Earth that is liquid is called the

Accepted Answer

mantle

Question 23

When a making a new product it is important to consider

Accepted Answer

the amounts needed, the cost, the energy used, the safety

Question 24

Movement of tectonic plates can cause

Accepted Answer

Earthquakes, Volcanoes

Question 25

Over millions of years plants and algae produced what gas?

Accepted Answer

oxygen

Science B Revision Unit 1 Theme 1

Questions 25

Science B Revision Unit 1 Theme 1

Questions 25