Year 4: Evaluating our investigation.
1. How did we ensure the investigation was a fair test?
2. What was our controlled variable?
3. What was our independent variable?
4.How did you present your data? Was this effective, how else could you have done this?
5.What did your results show?
6. Did anything impact the reliability of your investigation?
1. We made sure the test was fair by keeping the same person making the noise same person using the cups as headphones and same person measuring the distance.
2. We kept the same person making noise and the same person listening with the cup filled with the material on your ears.
3. We changed the material and the distance of meters.
4. We presented our data with a bar chart, the bar chart was effective by making sure we didn’t forget if it was muffled,clear and not clear.
5. Our results show that everything was clear.
6. We could use different materials next time.
– Aamir and Jay
1. The investigation was a fair test because the same person was speaking and the same person was hearing what the other is saying.
2. It was the same person speaking and the same person talking every time.
3. You have to change the materials.
4. We present it by a table.
By
Keisha
Samantha
Saifullah
1)We made sure the test was fair because we used the same person to hear, the same person to make the noise and the same cups.
2) The controlled variable was we kept the same person hearing, measuring and the distance.
3) The controlled varible was we changed the material.
4) We presented our data in our key.
5) Our results showed that the tissue paper was the best of the vibrations and the least best was cardboard.
6) If we do this again I would change stuff to see what would happen and if the results would still be the same.
1. We made this a fair test by making the same people make sounds and blocking off their ears from the sound.
2. We kept same cups.
3. We didn’t keep the materials.
Imran, Princess and Mandy.
1.How did we ensure the investigation was a fair test?
We had same thing.
Yes it was ensured
We keeped the same person so it was a fair test.
The independent variable was we changed the meters from 1 to 2 to3
We could make it a fair test by keeping the same person testing the investigation.
The control variable the sound and the distance.
The Independent variable is the distance
We presented our data by distance some has to speak by far.
That some you can hear but some you can’t hear.
You can do differently the distance.
The investigation was a fair test because the strings was the same length and the cup was filled up to the same height.
The same person would test the same thing.
We changed the materials.
We presented our data in a table and this was effective because it was clear.
My results was all the materials was clear for me.
We could add more materials next time.
Marvin,Andrei,Sarah and Chloe.
1)We put the volume at full so it can be a fair test
2)the volume
3)the material
4)we put it in a table and it went well
5)cotton wool was the best material to use for ear muffs
6)we made sure that we had no background noise
1.Because had to get the volume up to hear the music from a mile.
2.To hear the music so you can hear it far from the iPad.
3.We changed the material for a better volume.
4.In a table
5. My results show cotton wool the less loud
We used the same materials
Same volume and same cups swoped the materials
We showe it in table
Cotton was better
The background noise
We made sure it fair test because we had the same music and we made sure it was the right length
The music stay the same then material stay the same then we change it
we change the material
We present in a table next time we could do a bart chart
My result show that I was crorrt because I predicted cotton wool and cotton wool was crorrt
Back ground nouise can impact your investigation
1.We kept the IPad in the same place.
2.We kept the music on the IPad the same volume.
3. We kept on changing the materials.
4.We used different materials to see whatever materials is the best ear muffs your ears and it was effective.
1.We kept the I Pad in the same place.
2.We kept the music of the I Pad the same volume and kept the I Pad in the same place.
3.We kept on changing the metres to 1metre to 2metres to 3metres and we changed our materials.
4.We used different materials to see whatever material is the best to ear muff your
ears and it was effective.
5.My Results showed me that I was incorrect.
6.No nothing impacted it.
6.Only the background noise.
1. How did we ensure the investigation was a fair test.
We ensured it was a fair test by making the cups the same size and we made sure that the same amount of material went inside the cup.
2.what was the controlled variable.
The controlled variable was the thing that we changed which was the material.
3. What was our independent variable.
Our independent variable was the volume.
4. How did you represent your data? Was this effective,how else could you have done this.
We represented our data using a chart it was effective but we could have used a tally chart or a bar chart.
5. What did your results show?
Our results showed that cotton wool was the best material and paper was the worst material.
6.did anything Impact the reliability of your investigation.
The background noise was going to effect it but we ensured there were no background noise.
1. We made sure it was a fair test because we had the same material and same music .
2. We kept the music of the I pad and the same voice
3 we chooses different materials
4. We present in a table next time we could do a bar chart
5. My result showed me in my book
5. The cotton ball was better
6. Yes the background noise impacted my results