Scientists are now able to grow 'beating' heart tissue in a lab!
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One barrel of petroleum holds 42 gallons.
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No matter how cold it gets, gasoline will not freeze.
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The earth is approx. 6,588,000,000,000,000,000 tons.
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The smell of freshly cut grass is actually a plant distress call.
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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!
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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