Did You Know That (About Nature) - 6

  • Rubber bands last longer when kept refrigerated.

  • Sea water is approximately 3.5% salt.

  • Sound travels 10 times faster through granite than air.

  • Sound travels 15 times faster through steel than air.

  • Sound travels 4.3 times faster through water than in air.

  • Sponges hold more cold water than hot.

  • Sun light can penetrate clean ocean water up to a depth of 73m (240 feet).

  • The Atlantic Ocean is saltier than the Pacific.

  • The center of the Sun is approximately 15 million C (27 million F).

  • The diameter of Earth is 12,756 km (7,926 miles).


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