Balsa wood is classified as a hard wood!
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
The smell of freshly cut grass is actually a plant distress call.
31
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Iron weighs more after it rusts.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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