1. Value Unit kg m/s years m s g km2 Mass of the Earth Speed of Light
Time since the dinosaurs
years
Thickness of a sheet of paper m
Number of seconds in a day s
Mass of a hydrogen atom g
Area of North America
km2

2. Value Unit 6 x 1024 kg m/s years m s g km2 Mass of the Earth
Speed of Light
m/s
Time since the dinosaurs
years
Thickness of a sheet of paper m
Number of seconds in a day s
Mass of a hydrogen atom g
Area of North America
km2

3. Value Unit 6 x 1024 kg 3 x 108 m/s years m s g km2 Mass of the Earth
Speed of Light
3 x 108
m/s
Time since the dinosaurs
years
Thickness of a sheet of paper m
Number of seconds in a day s
Mass of a hydrogen atom g
Area of North America
km2

4. Value Unit 6 x 1024 kg 3 x 108 m/s 6.4 x 107 years m s g km2
Mass of the Earth
6 x 1024 kg
Speed of Light
3 x 108
m/s
Time since the dinosaurs
6.4 x 107
years
Thickness of a sheet of paper m
Number of seconds in a day s
Mass of a hydrogen atom g
Area of North America
km2

5. Value Unit 6 x 1024 kg 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m s g km2
Mass of the Earth
6 x 1024 kg
Speed of Light
3 x 108
m/s
Time since the dinosaurs
6.4 x 107
years
Thickness of a sheet of paper
8 x 10-5 m
Number of seconds in a day s
Mass of a hydrogen atom g
Area of North America
km2

6. Value Unit 6 x 1024 kg 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m
Mass of the Earth
6 x 1024 kg
Speed of Light
3 x 108
m/s
Time since the dinosaurs
6.4 x 107
years
Thickness of a sheet of paper
8 x 10-5 m
Number of seconds in a day
8.6 x 104 s
Mass of a hydrogen atom g
Area of North America
km2

7. Value Unit 6 x 1024 kg 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m
Mass of the Earth
6 x 1024 kg
Speed of Light
3 x 108
m/s
Time since the dinosaurs
6.4 x 107
years
Thickness of a sheet of paper
8 x 10-5 m
Number of seconds in a day
8.6 x 104 s
Mass of a hydrogen atom
1.66 x 10-24 g
Area of North America
km2

8. Value Unit 6 x 1024 kg 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m
Mass of the Earth
6 x 1024 kg
Speed of Light
3 x 108
m/s
Time since the dinosaurs
6.4 x 107
years
Thickness of a sheet of paper
8 x 10-5 m
Number of seconds in a day
8.6 x 104 s
Mass of a hydrogen atom
1.66 x 10-24 g
Area of North America
2.42 x 107
km2

9. ‘Big’ Numbers 1 x 103 Thousand 1 x 106 Million 1 x 109 Billion
1 x Trillion

10. ‘Big’ Numbers 1 x 1015 Quadrillion
- The number of grains of sand on a beach
- Market price of all the assets in the World
- Number of ants in the World

11. ‘Big’ Numbers 1 x 1018 Quintillion
- Distance (in miles) to the furthest object you can see with the naked eye

12. ‘Big’ Numbers 1 x 1078 Number of atoms in the Universe
1 x A Googol

13. Calculations using standard form
EXAMPLE
(2 x 103) x (4 x 104)
= (2 x 4) x (103 x 104)
= 8 x 107

14. Calculations using standard form
Try these
(2 x 106) x (2 x 103)
(3 x 107) x (1 x 102)
(5 x 102) x (1 x 104)
(2 x 108) x (4 x 103)
(3 x 10-1) x (3 x 105)
(4 x 103) x (2 x 10-5)
(3 x 102) x (4 x 103) Harder!

15. Calculations using standard form
Try these
(2 x 106) x (2 x 103) 4 x 109
(3 x 107) x (1 x 102) 3 x 109
(5 x 102) x (1 x 104) 5 x 106
(2 x 108) x (4 x 103) 8 x 1011
(3 x 10-1) x (3 x 105) 9 x 104
(4 x 103) x (2 x 10-5) 8 x 10-2
(3 x 102) x (4 x 103) 1.2 x 106