Tag Archives: Science week

Outdoor Learning

Frozen gardens

Leave a comment

It’s science week at Cart Mill and we have been discussing the properties of water and the effect of the cold. We found out during our visit from Williamwood that water is a liquid and that it can move about in a container.

We gathered some containers and used scissors to cut up some foliage to add before we poured the water in, then off to the freezer we went.

The next day we were surprised by the appearance of the water “it’s gone hard” “it’s cold” The water had changed from a liquid – something that can move about in the container, to a solid – something that doesn’t move in the container. When the temperature of the water becomes very cold (below freezing) it turns to ice.

The children decided to add colour to the water, so, very carefully we used droppers to add some dye “it’s getting  darker”

 

The children wondered what would happen if we added more water to our ice. We added another layer of foliage and coloured water on top of our ice. The water sat like a different layer on top of the ice, it was very strange, the water moved but the ice didn’t! We all wondered what would happen if we put the container back in the freezer so off to the kitchen we went with our containers. What will happen? Watch this space…

Technologies

Science is Magical

Leave a comment

As it is Science Week, we decided to get some help from the experts! We invited Miss Mortimer and Deanna over from the Science department at Williamwood High School. They brought lots of equipment with them so that we could become scientists for the day!

We heard that sometimes scientists had to wear white coats and goggles to protect themselves when doing experiments but we were not going to be using any dangerous equipment so we didn’t need to.

The first experiment we were shown was how to make marbling on water. Miss Mortimer explained that sometimes materials were ‘attracted’ to each other and sometimes they were not and they ‘repelled’. We had found this out when we had been looking at magnets and how they worked so the children said they knew that magnets liked things that were metal but didn’t like plastic cars!
We each picked a piece of black card, and Deanna put a basin of water in front of us. She then got a ‘pipette’ which Miss Mortimer explained was what scientists use to get small droplets of liquid. Deanna used the pipette to suck up some clear nail varnish and drop it on the water.

The nail varnish didn’t mix into the water, instead it sat on the top and made a sheen on the surface of the water! The children all got a turn to place their black card onto the nail varnish sheen and gently press the card into the water. When we lifted the card out, it was all shiny. We enjoyed doing this and all said we wanted to do it again using different colours of nail varnish.

The second experiment was AMAZING! Miss Mortimer explained that liquids moved about and that they fitted the shape of a container but she said that a solid didn’t, she told us our table was a solid. She then said there are things called gases and sometimes we have gas in our tummy that needs to escape!
Miss Mortimer and Deanna got a beaker of water and added food colouring. We chose blue. Then, we added some oil to the beaker. The oil did not mix into the water, instead it rose up to the top of the beaker and sat on top of the water.

Deanna then added a magic tablet (alka seltzer!) and we started to see some bubbles, the bubbles were the gases trying to escape! We could see the blue water bubbling up through the oil just like magic. We all took a turn of squeezing the pipette into the liquid to make our own bubbles. It was great fun.

We had the best morning being scientists. We loved our visit from Williamwood High School and can’t wait for them to come again. Why don’t you try creating these fun experiments at home, and if you know of any others then please let us know!

Digital Technology, Outdoor Learning

Hot and Cold “what happens ?”

Leave a comment

What happens to water when it’s freezing cold?
Freezing happens when molecules of liquid get so cold that they slow down enough to hook onto each other to form a solid crystal. We watched this happen in slow motion on our iPads.  It thought it looked like crocodiles, birds or leaves. We then made our own ice cubes, we poured the water into the trays and placed it in the freezer.

The ice cubes are sticky and cold. I see patterns inside them . They melt in my hand but they are still cold ..

That was something cold but what about hot things? What happens when you add heat to popcorn?

Popcorn pops because each kernel has a tiny bit of water inside it. When the kernels are heated up to the point where it exerts enough pressure, the kernel bursts open. The soft material inside puffs up as it explodes. This then cools and forms the odd shapes we know and love to eat.

The shapes got the children discussing some safety rules; “it is very hot”, “we wouldn’t touch it”. Then they started to chat about what shapes and textures had been produced. “Mine looks like a horse.”  “I found the seed, it is hard.” “My popcorn is crispy.”

As the popcorn comes from seeds we have decided to plant them and grow our own popcorn plant! We have put the seeds in the green house. Let’s see what happens next!

We have had a lot of fun today trying out our experiments for science week and learnt lots of new information. We have lots of different experiments to try out throughout the week and we cannot wait!

Digital Technology, Expressive Arts, Literacy, Technologies

Water Xylophone

Leave a comment

This week is Science Week and we will be exploring science themed experiences throughout all the different areas in each of the playrooms.

Today in our music area we made a water xylophone using some glass jars and food colouring.

We were developing our fine motor skills and hand-eye coordination as we used a pipette to pour the food colouring in to the jar after which, we added some water.

Once the children had added the water, they lined up all the jars and noticed that each jar had a different volume of water.

”that one is filled right to the top”

”the red one has just a little bit”

We used a beater on the jars to listen to the sounds it made.

”The blue one sounds really low and the red one sounds really high”

I asked if the children knew what made the sounds but they were unsure.

After searching the internet we learned that when we use the beater to tap the jar it causes sound waves which are vibrations that travel through the water to make the sound. When there is less water the pitch is higher.

We listened to the different pitches as we played our own music, we are going to collect some more jars to add lots of different sounds.