Science Year 4

Which of the following shows the correct stimuli and response?

• Stimuli:

  Cover ears

  Response:

  Sound of firecrackers

• Stimuli:

  Sound of thunder

  Response:

  Cover ears

• Stimuli:

  Sound of firecrackers

  Response:

  Cover ears

• Stimuli:

  Sound of firecrackers

  Response:

  Scream

Which of the following represent P and Q?

• P: Mammals

  Q: Amphibians

• P: Mammals

  Q:Reptiles

• P: Reptiles

  Q: Amphibians

• P: Amphibians

  Q: Reptiles

Which of the following is the correct description of the situation shown?

• Plants protect themselves from enemies.

• Plants respond to gravity.

• Leaves respond to touch.

• Shoots respond to light.

Which bar chart represents the strength of sound heard by the children in the diagram?

• 
• 
• 
• 

Which property of light is relevant to this situation?

• Light is reflected.

• Light travels in a straight line.

• Light is refracted.

• Light cannot pass through opaque objects.

What is the length of the shadow if the recording activity continues till 4 p.m.?

• 15 cm

• 5 cm

• 10 cm

• 25 cm

Which is the best way to overcome the constipation problem?

• Eat more rice.

• Drink sweet drinks.

• Reduce food intake.

• Eat plenty of vegetables and fruits.

How can this problem be solved?

• Use paper to wipe the plates

• Replace the jersey cloth with cotton cloth

• Wipe the plates again using the same cloth

• Replace the jersey cloth with synthetic cloth

What is the best way to put the box into the truck?

• Place a ladder at the vehicle.

• Use a rope to pull the box into the vehicle.

• Use a cloth to pull the box to his vehicle.

• Place the tilted board at the back of the vehicle and the trolley.

Which of the following statements is true about energy R, S and T?

• J and K

• K and L

• J and L

• L and M