Float or sink?

We made guesses as to which items we thought would float or sink.  We wrote down our answers and tested them out.  We were very surprised at some of the items.  Afterwards we had plasticine to make our own floating vessel. It was very tricky but we had fun.

Can we hear as well as a dog?

We tested our hearing to see if we could hear as well as a dog.  We wore a blindfold and used only our hearing to find the person making the noise. We enjoyed finding where the noise came from and found out that dogs can hear sounds before we can and that's why we have them as guard dogs.

(photos to follow)

Our Metal Detectors

Following on from our electricity experiments, we used the knowledge that we learned about circuits to build our own metal detectors.  We created a circuit with a button cell battery,  3 wires and a LED bulb.  Once we buillt our circuit we put it inside a plasticine alien we made.  We added foil for hands and tested it.  If we touched anything metal the aliens nose lit up.  We had a few problems along the way with the connections staying together but we got there in the end.

Autumn Term September 2014

Electricity

We have been investigating electricity.  We talked about things in our homes that use electricity and how we can make a bulb light up.  We used a battery as the power and connected it to a bulb using wires. On the end of the wires are crocodile clips (they look like a crocodiles teeth!)  We tried all sorts of ways to make the bulb light up but we soon realised we needed to make a circuit.  Hey Presto we have a lit bulb! We then tried to power a buzzer, it sounded very funny and tickled our finger tips when we touched it.  We had lots of fun!

Floating Vessels

We looked at different types of vessels to float on water and made our own out of plasticine.  It was much harder than we thought.

Static Electricity

We were experimenting with static electricity, first we rubbed balloons on our heads to see if it made our hair stand up, then we rubbed the balloons on our heads again and put it close to a tin can.  We were amazed when we saw the can move!

Year 3 Science Club

We investigated which colours woodlice and worms would prefer and why? As a group we chose 4 different colour pieces of card, they were green, yellow, black and blue. The card was placed into each corner of a large black tray so the woodlice and worms couldn't escape. We collected a number of woodlice and worms and placed them gently into the tray. One or two of them rolled into a ball but the rest walked quickly to the edges of the tray. They walked around the very edge which is black until they came to the black piece of card. They mostly stayed underneath the card.  We think they prefer dark colours because in their natural habitat they live under wood where it is dark and they feel safe.