WEEK 13

SCIENCE
Gases surround us, but how many can you name? Which ones make up the air around us? Which gases are important for human life or plant life? Show children the table of gases and discuss the contents. How many of these gases have they heard of? Show children the video clip (attached below) showing gases being used in everyday life. How many can children spot? Moving air can be very useful, turning wind turbines, blowing washing on a washing line or filling the sail of a yacht, but it can also be damaging. If you have an air pump, ask the children push the plunger so they can feel the air against their skin. Remind children that all materials are made up of particles - solids, liquids and gases! Even though many gases are not visible they are there and they are matter! Explain that they will carry out some demonstrations to show that air is a material.
Remind the children that on the Earth’s surface air fills every available space, even those tiny spaces between and within solid objects. But what evidence is there of this? Provide children with a variety of solids in containers (soil, stones, marbles). With a magnifying glass in hand, ask children to investigate what happens as they slowly pour water over them. Bubbles of air/gas escape as water fills the spaces. Where do the bubbles come from? (From the gaps between the solids.) In a bowl of water, chn submerge a sponge and squeeze it. Can they explain what is happening? Where are the bubbles coming from? (From the spaces and gaps within the sponge.) Ask children to record what they have observed through annotated drawings using the table in the session resource. Encourage the children to look closely using the magnifying glasses, make their sketches as detailed as they can and describe what they have seen using scientific terms. 
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