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Churchfield Church School

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Science

WC 25.5.20

 

Try the 'sun prints experiment'


Try to write prediction and conclusion. 

 

You will need:

  • objects
  • sugar paper - will different colours have different outcomes?
  • a sunny day

 

Lay objects on to sugar paper and leave out in the sun. Once left for a while remove objects and see the imprint left on the paper.  

 

 

WC 18.5.20

 

Making rain experiment - try this to see how water forms clouds and rain.

 

You will need:

A plastic bottle and lid

warm water

a match

an adult!

 

  1. Fill the clear plastic bottle 3/4 full with warm water. Twist the lid on and shake the bottle a few times.
  2. Ask an adult to light a match for you. Remove the lid and put the lit match into the bottle and put the lid back on. 
  3. Squeeze and shake the bottle for 20 seconds.Then slowly release it. What happens? Squeeze and release it again. What do you see?

(Shaking helps the water to turn into vapour)

 

The science bit -

When you squeeze and shake the bottle, water vapour forms inside the bottle. When you let go of the bottle the vapour turns into a cloud made of water droplets. The particles in the smoke from the match help the droplets to form. When you squeeze the bottle again, the cloud turns back into vapour and disappears. 

Squeezing the bottle increases the pressure and temperature, turning droplets into vapour.  Releasing the bottle turns the vapour back into water droplets. 

WC 11.5.20

 

Complete 'Rain in the jar experiment' 

 

Children to write a prediction of what they think will happen and conclusion of what does happen. 

 

You will need:

  • A empty glass jar
  • Foil
  • Ice cube
  • Boiled water

 

Pour some recently boiled water into the glass jar and cover the top of the jar with foil. 

After 60 seconds (can you count this?) place some ice cubes on top of the foil. See what happens!

 

The hot water turns into vapour and rises inside the jar. The cold foil makes the vapour cool and turn back into water droplets which fall like rain. 

 

Previous work:

WC 20.4.20

Discuss seasons and make a season wheel with the months of the year placed in the correct season. Remember capital letters at the beginning of each month please Fir class! (Examples pictured below)

 

If you have activated a FREE twinkl (details further down the page under freebies) account during the lock down. Have a look at this powerpoint to help you discuss seasons.

I've also added a link to some helpful videos and games on BBC - no log in needed.

WC 27.4.20

Make weather forecaster.

You probably have a thermometer somewhere in your house, but how about a barometer? You can predict the weather that’s coming by watching a barometer. It measures the amount of air pressure. Low pressure systems usually mean wet rainy weather, while high pressure systems mean mild, cool weather. 

Keep your barometer indoors near a wall. Watch your straw or arrow over several days, maybe you could make a weather chart and record your findings. Do a few readings each day at same time during the day, so you can compare changes more accurately.

Here is a link to a video giving you a step by step guide how to make a Barometer if you need it. Please do not use a needle a straw is fine or make a smaller piece of paper to attach - maybe you could make a small arrow?

How?

At the time you sealed off the glass jar, you captured air inside it. The air pressure inside your jar was exactly the same as the air pressure outside of the jar. However, as the weather changes, so changes the air pressure in the atmosphere (the outside air).

Since your jar is nicely sealed, the air pressure inside it does not change. However, the air pressure outside changes with the weather. So this causes pressure on the balloon cover to increase or decrease.

WC 4.5.20

Make a rainbow experiment  

  • A glass of water (about three quarters full) 

  • White paper 

  • A sunny day - fingers crossed! If not use a torch!

 

Instructions 

  1. Take the glass of water and paper to a part of the room with sunlight (near a window is good).

  2. Hold the glass of water (being careful not to spill it) above the paper and watch as sunlight passes through the glass of water, refracts (bends) and forms a rainbow of colours on your sheet of paper. 

  3. Try holding the glass of water at different heights and angles to see if it has a different effect. 

 

What's happening? 

While you normally see a rainbow as an arc of colour in the sky, they can also form in other situations. You may have seen a rainbow in a water fountain or in the mist of a waterfall and you can even make your own such as you did in this experiment. 

Rainbows form in the sky when sunlight refracts (bends) as it passes through raindrops, it acts in the same way when it passes through your glass of water. The sunlight refracts, separating it into the colours red, orange, yellow, green, blue, indigo and violet. 

Tips!

  • Make sure your glass is full! 
  • It might help if you add a extra piece of paper onto the glass. As pictured above with a slot for the light to shine through.
  • Use a torch if you do not have a direct source of light coming in your window. 
Make a season tree and refer back to your season activity (examples below). How does your tree change with each season?

Announcements

Exciting news! Churchfield Nursery are excited to announce we now have Nursery places beginning September 2020. Applications can be made for children from Birth to four years old.
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