The Bridge V Learning Edition 1 ; our solar system | Page 39

Venus 108.2 41.4 4.73 0.12 Earth 149.6 0 0.00 0.00 Mars 227.9 78.3 8.94 0.22 Jupiter 778.3 628.7 71.77 1.78 Saturn 1,427 12,77.4 145.82 3.62 Uranus 2,869.6 2,720 310.50 7.70 Neptune 4,496.6 4,347 496.23 12.31 Pluto 5,900 5,750.4 656.44 16.29 However, matters are not that simple in practise. The flight paths to the planets are much more complicated. Planets, the Earth and the Sun keep pulling on the spacecraft during the whole journey. The following flight times are more realistic: Saturn 6.05 years Jupiter 2.73 years Mercury 0.4 years (ca. 5 months) Pluto 45.5 years Venus 0.29 years (ca. 3.5 months) Mars 0.71 years (ca. 3.5 months) Uranus 16.1 years Neptune 30.6 years Credit: UNAWE / C.Provot Full description • • Build an origami paper rocket with the children from the instructions found in the Appendix. Now hold a discussion with the children about what would be the requirements for the rockets to travel to each planet, and how much time each journey would take. Consider not only the distance to a planet, but also its surface conditions. Which planets can we land on (see activity 4.1)? How do we get through the asteroid belt that lies between Mars and Jupiter? What happens if we change the speed of the rocket? Tip: This activity can also be combined with 4.6.