Strange Sounds in Room 4

During Science Week Ms. Burke came in and did an experiment with us. 

We explored Sound!

We found out that sound is energy.

We did an experiment to see sound.

We needed:

A drum (we used boxes and tins!)

Clingfilm

A bowl

Rubber band

Rice.

How we did it:

1. First we stretched the cling film over the bowl and secured it with a rubber band.

2.  We sprinkled some rice on top of the cling film.

3.  Next we banged our drum beside the bowl with the rice on top.

   

 

 

Results:

We could see the sound. It moved the rice and made it dance. The closer the drum was the more the rice danced.

We also  felt sound. You can feel it too! Just put your fingers on the outside of your throat when you are talking. Can you feel it?

Next we tried another way to feel sound.

We used: a balloon.

How we did it:

We held the balloon against our ear and our partner pressed their lips against the balloon and spoke.

Results:

We could feel the vibrations through the balloon when they spoke.

Next:We decided to see how many balloons we could hear through.

 Rian could hear through 7 balloons.

 

Static Electricity in Room 4

Static Electricity

During Science Week Ms. Shields did an experiment with us all about static electricity.

Static electricity occurs when an electric charge builds up on an object.

This can happen by rubbing certain things together. 

We rubbed a balloon against our jumpers and put it close to our hair. The static electricity made our hair stand up!!

The static electricity made the balloon stick to the wall!!

 

 We did an experiment to see which material produced the most static electricity!

We needed:

Different materials: wool, nylon, cotton, tissue, silk.

Balloon

Rice Krispies

Bar chart

How we did it

We rubbed each piece of material with a balloon.

We made the rest fair by rubbing each material the same number of times with the same balloon.

We counted how many rice krispies the balloon picked up after being rubbed on each material.

 

 

Results:

Wool and Nylon produced the best static.

Room 4's Science Fair Experiment - Investigating Slopes

Our Project in the Science Fair was called Investigating Slopes!

What we needed:

A Ramp

A Toy Car

Ramps with different surfaces

Frame for holding ramp at different heights

Metre stick for measuring

How we did it:

1. We put the ramp at the lowest level. We rolled the car down the ramp.

2.                       We measured how far the car traveled.

3.                       Next we moved the ramp to the next level.

4.   We rolled the car down and measured how far it traveled again.

 

5.      We continued doing this until we used all the levels on the frame.

              

              

 

Results:

We found out that:

The car went faster and traveled further when the ramp was steeper.

Level	Units traveled
1 (Lowest)	5
2	13
3	20
4	25
5 (steepest)	27

 Next we decided to use ramps with different surfaces: carpet, foam, sandpaper, smooth, rubber.

We tested each one at level 5 to see which one made the car travel the fastest and furthest.

Results:

We found out that:

Smooth surfaces helped the car to go faster and travel further. Rough surfaces slowed the car down.

Material on Ramp	Units Traveled
Carpet	21
Sandpaper	26
Soft smooth fabric	27
Foam	24

Content:

SCIENCE: Forces (Gravity, friction)

Materials (Properties and characteristics)

MATHS: Number: operations (estimate, calculate averages)

Shape and Space: lines and angles

Measures: length (standard or non-standard) time

Data: Represent and interpret

Skills: Predicting, investigating, experimenting, observing, recording;

Exploring, planning, making, evaluating (i.e. designing and making)