Naturaleza 3° Basico

1.- The parts of the flower. Draw

2.- The life cycle of flowering plants.

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3.- Stages of the life cycle of flowering plants. Write and draw

4.- Parts of the pistil . Draw

5.- Parts of the stamen.Draw

6.- Answer

a) What are the three main parts of plants?

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b) What gas do plants use to make food?

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c) The leaves and stems of a plant grow toward ...____________________________

d) How are roots and stems alike and different?

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e) Describe one way stems help a plant

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7.- Draw female part of flowers.

8.- Draw male part of flowers.

1.- Look and answer.

Object Descomposition time

tomato 2 months

Plastic bottle cup 500 years

Batteries 100 years

Comic book 6 months

apple 3 months

CDs 100 years

1) Which objects are biodegradable?

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2) Which objects are non-biodegradable?

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2.- Read and answer in English.

Decomposition time is the process through which all objects degrade into tiny pieces and turn it to soil. This process helps other living things to live and survive.

Fruits and vegetables decompose in short periods of time. But other types of material, such as ,glass or plastic decompose in a long time.

a) What is descomposition?

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b) Which elements decompose in short periods of time?

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c) Which elements decompose in long periods of time?

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3.-

To use an item more than once before we throw it away

To change waste into useful products like compost or energy

To use less of an item

To modify and alter material so it can be used again ( often in a different form)

Reduce

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