Science experiment:
Question: What will happen to the sound if I change the shape of a piece of paper? (e.g. from a flat shape to a funnel shape)
Links to research about Sound:
Hypothesis: (What do you think will happen?) e.g. I think that the sound will be louder or Echo
Materials needed: Paper . Tape . Tissue . or . cotton .
Experiment (procedure):
e.g. Step 1 - First hold a flat piece of paper against your ear. Block your other ear with your hand. Get your partner to speak to you. What is the sound like? Can you hear clearly?
Step 2 - Next, roll the piece of paper into a funnel shape. Put the funnel against your ear. Face the funnel towards your partner and listen to them speak. What does it sound like? Can you hear clearly?
Step 3 - Next, face the funnel to the side while your partner speaks to you. Does it make a difference to the sound that you can hear?
Step 4 - Put some cotton balls or tissue paper into the funnel to block one end. Does it make a difference to the sound you hear? Is the sound quality the same?
Step 5 - Next, roll the piece of paper up and face one end of the paper roll towards your partner. Listen to your partner speak. Is there a difference to the sound you hear?
Step 6 - Finally, turn to the side with your paper roll and listen to your partner speak. What is the sound like?
Data (What happened?)
Shape/object/materials
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Results:
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1
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flat piece of paper
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didn’t make any difference.
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2
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funnel facing to the front
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louder and sounds clearer
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3
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funnel facing to the other side
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person sounded quieter. background noise was louder
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4
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cotton ball or tissue blocking the narrow end of the funnel
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It will sound the same a bit, but it was a little bit quieter
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5
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rolled up piece of paper (facing to the front)
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sounded a bit funny, but was clear.
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6
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rolled up piece of paper (facing to the other side)
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couldn’t hear clearly. could hear lots of background noise
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Observations: (This is your description of what happened)
When Miss Lagitupu put the funnel up to my ear she sounded louder.
When we used the flat piece of paper it didn’t make a difference. When we used the funnel the sound was louder and clearer. The sound was a bit quieter when the funnel was blocked.
Conclusion
My hypothesis was right because the sound was louder when the funnel was used.
