Vibrations and solid materials | Science | Quizalize & Oak National Academy

Starter quiz

Match the medium to the object.
- solid
  
  ⇔
  
  spoon ✓
- liquid
  
  ⇔
  
  shampoo ✓
- gas
  
  ⇔
  
  steam ✓
Which body part is used to hear sounds?
- ear ✓
- nose
- eye
- hand
- tongue
Sound waves need to travel through a ______ in order to reach our ears.
- 'medium' ✓
Why can sound not be heard in outer space?
- It is too dark in outer space for sound waves to travel.
- There is no air so no medium for the sound waves to travel. ✓
- They can be heard but no one has tested it yet.
What causes sounds to be heard?
- Vibrations travel to the mouth causing vocal cords to vibrate.
- Vibrations travel to the ear causing the eardrum to vibrate. ✓
- Vibrations stay in the object and send signals to your ears.
Which sentence best describes sounds travelling through a liquid medium?
- Sounds cannot be heard underwater.
- Sounds can be heard underwater. ✓
- Only music can be heard underwater.

Exit quiz

Sound needs to travel from an object through a ______ to be heard.
- 'medium' ✓
Which picture shows a taut string?
- A ✓
- B
- C
Why does the string on a string telephone need to be taut?
- The vibrations can pass through easily. ✓
- It is more fun to play with.
- You can be further away from your partner.
At the end of the investigation, scientists write a ______ to explain what the results show.
- 'conclusion' ✓
Which statement is correct about vibrations travelling through a solid medium?
- You can't hear a sound through a solid medium.
- Sounds are quieter and muffled.
- Sounds are louder and clearer. ✓
Which of the following best describes why sounds can be heard clearly and loudly through a solid medium?
- Solids are bright colours so vibrations can pass through more easily.
- Solids are heavy so they make louder sounds.
- The parts of solids are arranged so that vibrations pass through quickly. ✓

Worksheet

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Lesson Details

Key learning points

Sound travels from an object through a medium to our ears.
Vibrations can be heard when travelling through some solids, such as taut string and cups.
Scientists use results to make simple conclusions and raise further questions.
Vibrations travel through a solid medium more quickly. We can hear these sounds louder and more clearly.

Common misconception

Children often think that sounds will be quieter and more muffled when travelling through a solid medium.

It is important for children to try string telephones out for themselves to hear how sounds can be louder and clearer travelling through a solid medium.

Keywords

Vibrations - Vibrations are when an object moves very fast from side to side.
Medium - Vibrations need a medium to travel, such as a solid, liquid or gas.
Solid - A solid is something that holds its shape and is not a liquid or a gas.
Taut - Taut means to be stretched firmly or tightly.
Conclusion - In a conclusion, scientists explain what the results show or mean.