For the next two weeks of science lessons

For the next two weeks of science lessons we are going to revise all of the units we have learnt about this year as well as do as much outdoor learning as we can. The 5 units we are revising are: - Materials - Earth and Space - Forces - Animals including Humans - Living Things and their Habitats Each lesson will have some reading and then a short task to revise that unit. At the end will be a science assessment for all of the Year 5 learning to see how much you can remember. At the end of each revision lesson will be some suggested websites or activities for you to do at home or in your garden/local park if you want to do them. Remember to send any pictures of these tasks if you do them! Do also keep doing as many 50 things activities as you can! Usually during this term at school we would be spending a lot of time going to parks and other outdoor areas to complete our 50 things so you do need to be doing as many as you can at home! 1

Monday 15 th Lesson 1 - Materials Anything written in green is the tasks to answer in your book (or on this sheet if you want to. ) What materials can you think of that are natural? What materials can you think of that are manmade? 2

Match these properties to their definitions. 3

Materials can be thermal conductors or thermal insulators. Can you list some materials for each of these? 4

In investigations scientist often have mixtures of materials and need to use different methods to separate them. Such as sieving, filtering etc. Can you match the mixture to the separation method that would need to be used? Explain why you think this. Magnetism Filtration Evaporation Sieving 5

All of those mixtures changed the material in a way but could all be changed back. These are reversible changes. Some changes to materials are not reversible. For example an egg is a solid and a liquid. It is hard on the outside and opaque. The inside of the egg is translucent and liquid. BUT if I crack the egg the material of the shell changes. It is now broken. If I add heat to the liquid part of the egg it becomes solid. HOWEVER unlike with ice and water, I cannot change my solid egg back into the liquid egg and I cannot change the cracked broken shell into the a solid shell again. This is an irreversible change. Can you think of any other irreversible changes, write them down. 6

Websites for extra materials knowledge, games and tasks! https: //www. bbc. co. uk/bitesize/topics/zryycdm https: //www. education. com/activity/science/? q=materials https: //www. stem. org. uk/resources/community/collection/12742/year-5 -properties-materials https: //wowscience. co. uk/ These websites are all specific links to this unit, so type them in carefully or open this document from the Ark Academy website to click on the links. 7

Wednesday 17 th Lesson 2 – Earth and Space See if you can remember the order of the planets and the meaning of the other words in this grid. Check your definitions in a dictionary before writing them into your book! 8

Remember orbiting and rotating mean different things. Rotating is turning on an axis (like a model globe, it spins around the middle line) Orbiting is moving in a circular way around something else (like the planets going around the sun) Name two things to do with space that rotate and two that orbit. 9

There are two main theories for how the Solar System works. They are the heliocentric model and the geocentric model. Over thousands of years, ideas about how our Solar System works has changed and is still changing today as we learn more about Space. The Heliocentric Model is the idea that the sun is the center of the universe and everything orbits around it. The Geocentric Model is the idea that the earth is the center of the universe and everything orbits around it. Can you remember the root words which help us to remember which model is which? In your book write a few sentences to explain both models and write which model we believe today. 10

As the moon orbits the earth we only see certain parts of it. These different views of the moon have names, we know full moon very well but can you match the different views to their names? New Moon Full Moon Waning Crescent Waning Half Moon Waning Gibbous Waxing Crescent Waxing Half Moon Waxing Gibbous Remember waxing means we can see more moon waning means we see lesson moon. And the cycle goes anticlockwise! 11

Websites for extra materials knowledge, games and tasks! https: //www. stem. org. uk/resources/community/collection/12347/year-5 -earth-and-space https: //www. education. com/activity/earth-science/? q=earth%20 and%20 space https: //www. bbc. co. uk/bitesize/topics/zkbbkqt https: //wowscience. co. uk/? sfid=87&s=earth+and+space These websites are all specific links to this unit, so type them in carefully or open this document from the Ark Academy website to click on the links. Over the next month you can also keep a moon diary! Each night look at the moon and draw What is looks like. At the end of the month you should then see a full lunar cycle! There is an Empty grid on the next slide for you to use. 12

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Friday 19 th Lesson 3 – Forces We already know the difference between a push and a pull force. This year we learnt more about gravity, water resistance, air resistance and friction. What can you already remember about each force? Write some ideas in your book. Forces can either be balanced or unbalanced. If the forces acting on an object are balanced nothing will happen, if they are unbalanced then something will happen. For example If the forces of gravity and air resistance were equal and balanced a parachute would not float away or come down to earth they would stay very still in the air. We know this does not happen – a parachute will always come back down to earth. SO we know these forces are unbalanced allowing the parachute to come back down to earth. 14

Gravity Answer these questions in your book. 1 - Who first discovered gravity? 2 - What did he watch fall that made him think about it? 3 – Why do we need gravity? 4 – Is there gravity in space? (Think carefully about this one) 5 – Explain what gravity is and what it does in your own words. 15

Air resistance is the force of air against an object as an object moves through it. All objects fall at the same speed, no matter there size. (Think about the video we watched of the hammer and the feather). When there is no air all objects will land at the same time when dropped, what makes things fall faster or slower on earth is air. The push of air against an object is what slows down its fall. This is air resistance. 16

Water Resistance 17

Friction 18

In your books write a sentence or two to explain what each of these forces is. Air resistance, water resistance and friction. Then explain how these can be helpful forces and how they are not helpful forces. You’ll Need to think of situations where these forces are happening. Finally, if you were building a boat, how would you design it and why? You need to talk about The forces we’ve learnt about when describing and explaining your boat deisng. You can draw It too if you want to! 19

Websites for extra materials knowledge, games and tasks! https: //www. stem. org. uk/resources/community/collection/12696/year-5 -forces https: //www. education. com/resources/earth-science/? q=forces https: //www. bbc. co. uk/bitesize/topics/znmmn 39 https: //wowscience. co. uk/? sfid=87&s=forces These websites are all specific links to this unit, so type them in carefully or open this document from the Ark Academy website to click on the links. 20