Quizfind 15

1. For an artificial satellite’s orbit toremain in the same place, over the equator, it must keep a speed of 1,100 km/h, at a height of 35,786 km.

2. Any object that orbits a planet, or other large space object.

3. An orbit, in which a satellite travels perpendicular to the equator, passing over the poles, as it circles the Earth.

4. A composite flower, that looks similar to the daisy, with more than one flower head per stem.

5. A medium sized macropod, that lives in sandstone country, in Australia, whose molars wear away and drop out, from eating grass high in silica, and are replaced for the rest of their life, unlike other macropods, that only have four sets.

6. Long slim fish, with thick hard scales to protect them, and long slender jaws studded with small teeth.

7. A network of these satellites, uses Global Positioning System (GPS) to allow boaters, pilots, hikers, and motor vehicles, to pinpoint their position, within metres.

8. In 1970, the Soviet Venera 7, was the first one of this unmanned spacecraft, to touch down on another planet.

9. These satellites provide information, that is fed into powerful computers, which analyse the Earth’s atmosphere, and help meteorologists study weather patterns around the world, to make forecasts.

10. These four smaller planets, closest to the Sun; Mercury, Venus, Earth, and Mars, are believed to be made mostly of rocks and metals.

11. The tide, where there is much less difference between high and low.

12. If potential energy is stored energy, what is the energy of motion?

13. These planets; Jupiter, Saturn, Uranus, Neptune and the dwarf planet Pluto, are gaseous, and a great distance from the Sun.

14. The Australian lungfish has only one, and can breathe atmospheric air.

15. Minerals, which are compounds of oxygen, with another element, such as haematite, or with a radical.

16. Rock wallabies are among the brightest-coloured macropods, and this one is the smallest of the rock wallabies.

17. This planet is twice as heavy as all the other planets put together, composed of mostly hydrogen and helium, with a red spot of swirling clouds, 10,000 km across.

18. Because of the tilt of this planet, discovered by William and Caroline Herschel, in summer the Sun doesn’t set for twenty years. In winter darkness lasts for over 20 years, and in autumn, the Sun rises and sets evey nine hours.

19. The amount of matter (mass) in one unit of volume (space); water being the only substance with less weight as a solid than a liquid, which is why ice floats.

20. The study of the make-up of substances, and how one can be changed into another.

21. The tiny, extremely dense core of an atom, made of a cluster of two kinds of subatomic particles, protons, and electrons.

22. This whizzes around the nucleus, and has a negative charge, so are held to the nucleus by electrical attraction.

23. A positively charged particle, that along with neutrons, make up the nucleus of an atom.

24. The force of attraction between any two objects.

25. The crust and mantle, of this planet, are made mainly of rock, but the core, which is 75% of its diameter, is solid iron.

26. The word means big-foot, is an Asian/Australasian turkey-like bird, that constructs huge mounds in which to incubate it’s eggs.

27. This slimy eel-shaped fish, sucks the blood of other fishes, using it’s mouth to hold the victim, and scraping at the fish’s skin, and scales with it’s teeth, to cause bleeding.

28. It’s thick clouds of carbon dioxide gas, and sulphuric acid, reflect sunlight, making it shine like a star.

29. A lake trout.

30. When a star suddenly becomes many times brighter, it is called a …..

31. Desert dragons do this, when it rains, or the water collects as dew on their tails, and bodies, channeling it to their mouths, along grooves, between their scales.