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true or false
100
who invented the lightbulb
thomas eddison
100
what is the process in which sugars are made by plants?
photosynthesis.
100
who discovered radium which has been used for the treatment of cancer?
Marie Curie.
100
who discovered electricity?
benjamin franklin.
100
true or false, mr damsons 'goal' was actually an own goal!
true!
200
how far away is the sun to the nearest 10 million miles
93 million miles
200
what is the process in which sugars are broken down to release energy?
respiration
200
If the speed of light is 186,000 miles per second how would you calculate the distance of a light year?
186,000 x 60 x 60 x 24 x 365 miles
200
true or false? gravity is less on the moon?
true. (1/6th)
200
true or false, the tallest tree in the world is the redwood tree?
true
300
in electricity, what carries the charge?
electrons
300
if a reaction releases heat is it exothermic or endothermic?
exothermic
300
name four colours that make up visible light?
r, o, y, g, b, i, v
300
what are the name of the holes in plant leaves that let gas in?
stomata
300
true or false, a muscle is made up of actin and methethin?
false - actin and myosin
400
what is the population of the world, to within a billion?
7 billion.
400
what is the 1st law of thermodynamics? Energy cannot....
be created nor destroyed, just transformed from one form to another.
400
when a stick seems bent in water, what is this an example of ? refraction of diffraction or reflection?
refraction.
400
what are the name of the head and tailed molecules that make up a cell membrane?
phospholipids
400
true of false, the moon is 240,000 miles away?
true
500
who came up with the theory of relativity?
albert einstein
500
What is the pigment found in plants that is green?
chlorophyll
500
how many laws of motion did newton come up with? 1,3,5,7?
3
500
what are also found in the cell membrane that help with transport?
proteins.
500
true or false, girls are better than boys?
false!