End-of-chapter test
Turning Points Higher
1 Describe the main discovery of each of these scientists
John Dalton
JJ Thompson
Ernest Rutherford
Dmitri Mendeleev
(4 marks)
2 When the elements were first arranged into what we now know as the
Periodic Table, gaps were left.
a Describe how the elements in the Periodic Table are arranged.
(2 marks)
b Explain why gaps were left in the original Periodic Table.
(2 marks)
3 All of your cells contain DNA. It is a molecule that contains all of the
information needed to make an organism.
a Describe the shape of a DNA molecule.
(1 mark)
b Describe where most DNA is found within a cell.
(1 mark)
c The structure of DNA was not discovered by a single person. Several
scientists contributed to the development of a model of DNA structure.
Describe how the scientists worked together to do this.
(2 marks)
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End-of-chapter test
Turning Points Higher
4 a State the name of the theory of how the Universe began.
(1 mark)
b Describe how the Universe was formed using this theory.
(3 marks)
5 When scientists come up with a new explanation, they want to publish
their findings in a scientific journal. Describe how a scientific explanation
is developed and published in a journal. Include a description of peer
review.
In this question you get marks for how well your answer is written.
You will get marks for:




spelling
grammar
organising your ideas and information clearly
using key scientific words.
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This resource sheet may have been changed from the original.
(6 marks)
End-of-chapter test
Turning Points Higher
6 a Describe how electricity can be generated using electromagnetic
induction.
(4 marks)
b Suggest two ways to change the current induced during
electromagnetic induction.
In each case, describe how the current changes.
(2 marks)
7 Explain, with the help of a sketched graph, how the radioactivity of a
sample changes with time.
(6 marks)
© Oxford University Press 2016 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
End-of-chapter test
Turning Points Higher
8 If a patient does not complete their course of antibiotics, there is a risk of
bacteria becoming resistant to that antibiotic.
a Explain how bacteria can become resistant to antibiotics in this way.
(3 marks)
b Explain why this is an example of evolution by natural selection.
(3 marks)
9 NASA is considering sending a manned space mission to Mars.
a Describe the benefits to society of such a mission.
(3 marks)
b Explain why some politicians object to such missions.
(2 marks)
© Oxford University Press 2016 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.