Featured lesson: Life cycle of an oak tree

How many years does an oak tree live?

50?

150?

500?

1000?

An oak tree can live for over a 1000 years and can produce over 10 million acorns!

Every oak tree starts life as a tiny acorn, which contains only one seed.

Learn about the life an oak tree from germination to maturity with our film: Life cycle of an oak tree.

Topical science: NASA Tests a Heat Shield

NASA is planning to send humans to Mars. But for astronauts to arrive safely, they will have to pass through the Earth’s atmosphere, which will cause the spacecraft to heat up to 1,648 degrees Celsius. To protect astronauts, NASA engineers are developing a heat shield to attach to spacecraft landing on Mars.

A mission was launched recently to test the heat shield in Earth’s atmosphere. The inflatable, air-filled shield was released from a section of the rocket.

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