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Question 5.3   Compare the snake fossil with the snake skeleton and write down one similarity and one difference you can see between them.   Click on the button below to open the picture of the snake fossil and snake skeleton. (2)

Question 3 Answer the following questions regarding microorganisms:

1.3 Juan tiene los ojos marrones. [body3]  (1)

Question 4.2   List the different blood vessels in the circulatory system and describe the function of each. (2)

Question 5.2   List one way in which an animal or insect’s body can be preserved in the fossilisation process. (1)

Question 1.4.2   What is the source of energy for a solar panel? (1)

Question 4.4.3   Jim is 34 years old. Calculate his maximum heart rate. (1)

Question 1.4.4   What makes the blades of the turbine go around? (1)

Question 6 Answer the following questions regarding light:

Question 6.1   Fill in the missing words.   a.  Light travels in a [ans1] line. b.  A [ans2] lens diverges or spreads the light rays out. c.  When light rays converge or cross, a [ans3] lens is used. (3)