7L.1 The Earth in space (HSW)April 12, 2023

Copy the diagram using a pencil and a pair of compasses. Now label the three spheres with either the Sun, the Moon or the Earth.Now use the diagram to explain what a day, month and year is.

7L.1 The Earth in space (HSW)April 12, 2023

Day: the time it takes for the Earth to spin on its axis

Month: the time it takes for the Moon to orbit the Earth

Year: the time it takes for the Earth to orbit once around the Sun

The Moon

The Earth

The Sun

Time lapse of the Earth from space

Day and night on Mars

Stand up and gather round

Earthheat light

satellite orbits28

2 5 4

31

365.254

Sun365

1 year24 hours

Powers of ten

Homework

• Read chapter 7L• Begin preparing for the end of year test• Complete worksheet 7La/1

Learning Objectives

• State how long a day, a month and a year is• Describe the motion of the Sun across the sky• Describe how the Earth moves around the sun• Explain why we get day and night, and years

and leap years• Make predictions about time of day