1.
State what is meant by the early atmosphere. [1]
JD SCIENCE
Chemistry of the atmosphere
Answer all questions. Show working. Answers are in a separate file on the Worksheets page — do not look at them until you have finished.
2.
State what is meant by how oxygen increased. [1]
3.
State what is meant by the greenhouse effect. [1]
4.
State what is meant by human greenhouse emissions. [1]
5.
State what is meant by a carbon footprint. [1]
6.
State what is meant by atmospheric pollutants. [1]
7.
State what is meant by acid rain. [1]
8.
State what is meant by complete vs incomplete combustion of fuels. [1]
9.
State what is meant by limestone. [1]
10.
State what is meant by the oceans as a carbon store. [1]
11.
Amira is asked about the early atmosphere in a AQA Chemistry paper.
(a) Describe the early atmosphere. [2]
(b) Explain why the early atmosphere is important in this topic. [3]
12.
Amira is asked about how oxygen increased in a AQA Chemistry paper.
(a) Describe how oxygen increased. [2]
(b) Explain why how oxygen increased is important in this topic. [3]
13.
Amira is asked about the greenhouse effect in a AQA Chemistry paper.
(a) Describe the greenhouse effect. [2]
(b) Explain why the greenhouse effect is important in this topic. [3]
14.
Amira is asked about human greenhouse emissions in a AQA Chemistry paper.
(a) Describe human greenhouse emissions. [2]
(b) Explain why human greenhouse emissions is important in this topic. [3]
15.
Amira is asked about a carbon footprint in a AQA Chemistry paper.
(a) Describe a carbon footprint. [2]
(b) Explain why a carbon footprint is important in this topic. [3]
16.
Amira is asked about atmospheric pollutants in a AQA Chemistry paper.
(a) Describe atmospheric pollutants. [2]
(b) Explain why atmospheric pollutants is important in this topic. [3]
17.
Air is about 21% oxygen. Volume of O₂ in 5.0 dm³ of air [3]
18.
CO₂ rose from 280 to 420 ppm. Percentage increase [3]
19.
A car produces 2.3 kg CO₂ in 10 km. CO₂ per km [3]
20.
Balance CH₄ + O₂ → CO₂ + H₂O [3]
21.
If 4 mol CH₄ burn completely, mol of CO₂ [3]
22.
A sample of air is 78% N₂. Volume of N₂ in 200 cm³ [3]
23.
Amira carries out a AQA-style required practical linked to the atmosphere and Earth. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
24.
Amira carries out collecting valid data for the atmosphere and Earth. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
25.
Amira carries out drawing a graph for the atmosphere and Earth. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
26.
Amira carries out evaluating a method about the atmosphere and Earth. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
27.
Compare the early atmosphere with how oxygen increased. [4]
28.
Compare how oxygen increased with the greenhouse effect. [4]
29.
Compare the greenhouse effect with human greenhouse emissions. [4]
30.
Compare human greenhouse emissions with a carbon footprint. [4]
31.
Apply your knowledge of acid rain to this situation: damages limestone and lakes [3]
32.
Apply your knowledge of complete vs incomplete combustion of fuels to this situation: oxygen supply [3]