If you could fold a piece of paper 42 times, it would reach the Moon.
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Stem cell research explores regenerative medicine.
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The polio vaccine drastically reduced cases worldwide.
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Some metals explode when they touch water.
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The invention of the thermometer improved diagnosis of illness.
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The Earth's tilt is responsible for seasonal climate patterns.
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Particles can exist in multiple states until observed.
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The Earth's magnetic field is generated by its outer core.
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Dark matter is believed to make up most of the universe’s mass but has not been directly observed.
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