4A science-revision- Part 3

2) Sea turtles can mistake a ​ (a)   for food and it can hurt them.

3) The deep ocean is very cold, only about ​ (b)   degrees Celsius.

4) The deeper you go in the ocean, the colder it gets because the ​ (c)   drops.

5) When you dive deep into the ocean, the push you feel all around you strengthens. This push is called ​ (d)   .

6) There is less ​ (e)   the deeper you go, so it's very dark down there.

• three
• temperature
• pressure
• light
• plastic bag

1. A (a)   is a huge wave caused by the earth shaking under the sea.

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

This is because the hot air from the burner heats the air inside the balloon, causing it to rise as it becomes less dense than the cooler air outside

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

Heat from the fire radiates outwards in all directions. People can feel the heat without touching the fire because it is transferred through the air by infrared radiation.

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

When the iron is heated and pressed against the clothes, heat is conducted from the iron to the clothes to remove wrinkles.

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

The heat from the fire reaches the hands through electromagnetic waves, warming them without direct contact.

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

The flame heats the bottom of the pot directly in contact with it, and this heat is then conducted through the material of the pot to the water.

• CONDUCTION

• CONVECTION

• RADIATION.

Answer explanation

As the coffee is heated from the bottom, the warm liquid rises while cooler liquid moves down to replace it, creating a convection current.

Label the rock cycle

a

b

c

METAMORPHIC

IGNEOUS

SEDIMENTARY

Organize these options into the right categories

Groups:

(a) Natural Light Sources

,

(b) Artificial Light Sources

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