1 00:00:08,240 --> 00:00:23,839 The universe is huge. It's very big. There are many different things in the universe. There are stars, planets, and satellites. 2 00:00:23,839 --> 00:00:28,539 Stars produce light and heat 3 00:00:28,539 --> 00:00:33,380 Planets orbit the stars 4 00:00:33,380 --> 00:00:38,159 And satellites orbit the planets 5 00:00:38,159 --> 00:00:44,880 The universe is huge and there are many solar systems in the universe 6 00:00:44,880 --> 00:00:51,039 In our solar system, the sun is our star 7 00:00:51,039 --> 00:00:57,000 There are eight planets that orbit the sun 8 00:00:57,000 --> 00:01:05,480 The sun is a star at the centre of our solar system 9 00:01:05,480 --> 00:01:12,859 Living organisms need its light and heat to live 10 00:01:12,859 --> 00:01:18,140 We live on planet Earth 11 00:01:18,140 --> 00:01:24,599 Earth orbits the sun in about one year 12 00:01:24,599 --> 00:01:40,500 the moon is our satellite and orbits the earth in about four weeks the sun is at the center 13 00:01:40,500 --> 00:01:50,500 of our solar system the sun gives the planets light and heat there are eight planets 14 00:01:50,500 --> 00:01:53,340 that orbit the sun. 15 00:01:54,840 --> 00:02:13,199 The names are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. 16 00:02:13,199 --> 00:02:30,319 the earth rotates in 24 hours or one day when the earth faces the Sun it's day when it doesn't face 17 00:02:30,319 --> 00:02:44,979 the Sun it's night during the day we can see clouds the Sun and birds in the sky at night 18 00:02:44,979 --> 00:02:57,740 we can see the moon the stars and it's very dark this is the moon the moon is a satellite the moon 19 00:02:57,740 --> 00:03:12,280 orbits the earth once every 28 days or four weeks the moon doesn't give out light or heat the moon 20 00:03:12,280 --> 00:03:20,319 reflects light from the Sun here are some faces of the moon the full moon is 21 00:03:20,319 --> 00:03:37,180 big and bright the half moon quarter moon new moon and quarter moon there are 22 00:03:37,180 --> 00:03:49,439 four seasons in a year spring summer autumn and winter in spring days get 23 00:03:49,439 --> 00:04:01,689 longer new leaves grow on the trees you can see a lot of flowers in summer the 24 00:04:01,689 --> 00:04:10,389 days are long some trees have fruit it's very hot and sunny you can go to the 25 00:04:10,389 --> 00:04:29,939 beach in autumn days get shorter leaves fall off the trees the weather can be windy and cloudy in 26 00:04:29,939 --> 00:04:42,420 winter days are short some trees have no leaves it's very cold it can rain and it can snow we 27 00:04:42,420 --> 00:04:54,220 use a calendar to measure time. There are seven days in a week. Monday, Tuesday, Wednesday, 28 00:04:54,220 --> 00:05:10,560 Thursday, Friday, Saturday and Sunday. There are 12 months in a year. January, February, 29 00:05:10,560 --> 00:05:26,639 March, April, May, June, July, August, September, October, November and December.