Out in Space

Unit Evaluation – Science Project Glue in Learning Objectives Title Page

07 / 08 Monday Kaupapa: Describe how the Earth looks from the outer space Describe how days & nights and the seasons are produced

What am I? I am very fast - moving at 1,000,000 km/hr. I am very heavy – weighing about 6,000, 000,000,000,000,000,000,000,000 kg. I am very big – waist size: 40,000 km I am very old - about 4.5 billion years old. I am 150,000,000 km away from the sun The hottest part of my skin is about 60 oC The coldest part of my skin is about -90 oC I am 70% covered by water.

Questions: What colours can you see in the picture? Why?

The Blue Marble is a famous photograph of the Earth, taken on December 7, 1972, by the crew of the Apollo 17 spacecraft, at a distance of about 45,000 kilometres.

Earth’s Motions

Rotational Motion

Days & Nights (Rotational) The earth rotates (spins) about its tilted axis once every _____ hours. The side of the Earth that is facing the Sun is experiencing “day”. The side of the Earth that is facing away from the Sun is experiencing _______.

Orbital Motion

Tilt and Seasons

Four Seasons (Orbital) The Earth orbits around the Sun once every ________ (365 days) because of the Sun’s gravity. The Earth is tilted by 23.5 degrees. When the southern hemisphere (the lower half) is tilted away from the Sun it is _________ in New Zealand.

What have we learnt today? How long does it take for the Earth to spin once? How long does it take for the Earth to go around the Sun once? What causes day and night?