Which of the following is the correct pairing for the organs and their system?

• heart - circulation system

• stomach - breathing system

• lungs - control system

• kidneys - digestion system

Sun -> Baobab tree -> Giraffe -> Lion

We know that all food chains should begin with the producer. Why is the sun at the beginning of this food chain?

Something that can make their own food is called a in the food chain.

Which of these is NOT a reversible change?

• Dissolving salt in water

• Melting butter in a hot pan

• Baking a cake

• Putting water into the freezer

Please explain what is an irreversible change?

Your heart beats faster when you exercise.

• True

• False

How do the kidneys work?

• Send signals to all parts of the body

• Pumps blood around the body

• Contains air

• Filter blood from waste

Which of these statements is one that is in favour of deforestation?

• If we remove the forest, many kinds of plants and animals will disappear forever.

• I need wood to make tables and chairs.

• There may be new cures for diseases in these trees.

• The forest provides me with food. What will I eat if they take away the forest?

What is the name of the process of a producer making their own food?

Mixtures can be separated.

• True

• False