Statistics for Science Quiz #1

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Question	Answer	% Correct
What does the digestive system do?	Breaks down particles of food which are turned into a disposable material	100%
What is the Earth made of?	Crust, Mantle, Outer core, Inner core	98%
Why are plants green?	They have a green pigment in their cell	98%
Define what friction is.	A force that acts in an opposite motion.	93%
Which planets are Gas Giants?	Jupiter, Saturn, Uranus, Neptune	93%
Name a bone in your body that starts with the letter 'U'.	Ulna	89%
What do plant cells have that animal cells don't?	Cell wall, Chlorophyll	85%
What are sedimentary rocks?	Rocks that have over time formed layers out of particles of sand	80%
What range of numbers in the pH scale are alkali?	8-14	72%
What are some sources of chemical energy?	Fuel, Batteries, Food.	67%
What element from the periodic table is number 45?	Rhodium	56%
What colour is litmus paper in a weak acid?	Light red.	54%