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Earth and Space| Year 5 | Summer

Important Scientists

Beliefs

Aristotle

Believed that the Earth was at the centre of the universe and all planets moved around it.

Ptolemy

Also believed the earth was at the centre of the universe. Other planets and the Sun move around the Earth in circles.

Copernicus

Believed that the Sun was at the centre of the universe and the planets moved around it. The Earth is also rotating as well as revolving.

Galileo

Also believed the the Sun was at the centre and planets orbited around it. He used a telescope to prove this.

Research Galileo

He was put under house arrest for being the first person to use a telescope on the night sky to observe. He spoke out about his views of the Earth orbiting around the Sun and the Church of Italy was not happy. He was forced to recant his ideas.

Vocabulary

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Rotation

The action of turning on an axis or centre point.

2

Revolution

The movement of an object in a circular course.

3

Orbit

The curved path of a celestial object around a star/planet/moon.

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Spherical

A 3D circle

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Sun

A star which our Earth orbits

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Moon

Astronomical body

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Planet

A celestial body moving in orbit

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Gaseous

Made up of gas

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Rocky

Made up of solid particles

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Axis

An imaginary line about which a body rotates

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Geocentric

Earth at the centre of the universe

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Heliocentric

Sun at the centre of the universe