34


Table 1 Planet


Mercury Venus Earth Mars


Figure 34.1


THE BIG BANG AND BEYOND EARTH


ACTIVITY 1: REVISION QUESTIONS 1 Put the events of the Big Bang in order. The first one has been done for you.


Atoms started to form from sub-atomic particles


1 All energy and matter was located in one small, hot and dense location Sub-atomic particles started to form as things cooled down Atoms were pulled together by gravity Everything started expanding


2 In 1993, Javier Sotomayor (Figure 34.1) set the world record for the high jump at 2.45 m. Using the planetary fact sheet in Chapter 7 in your textbook (pp. 90–91), calculate how high Javier could have jumped on Mercury, Venus and Mars (imagining he could survive on those planets without a spacesuit!). Enter your results in Table 1.


Calculation Jump height


2.45 × 1 G


2.45 m


158 UNIT 9: PALE BLUE DOT


EARTH AND SPACE


c


h


a


p


t


e


r


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