P5 HBL Revision

Plant Transport System and Respiratory System

We have already learned...

• there is a plant transport system, the xylem and phloem

• phloem= food-carrying

• xylem= water-carrying

• where is food made in and where is the food transported to?

• where is water absorbed in and where is the water transported to?

Drag and Drop

The ​

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transports water from the ​

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to ​

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Drag these tiles and drop them in the correct blank above

water-carrying tube

root

all parts of the plant

leaves

food-carrying tube

flower

Drag and Drop

The food is made in the ​

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and transported from the ​

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to other parts of the plant using the ​

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​

Drag these tiles and drop them in the correct blank above

leaves

food-carrying tube

water-carrying tube

roots

Fill in the Blanks

What is the purpose of adding oil to set-ups involving beakers of water?

To prevent

.

​Respiratory System

So far, we learned that...
- Nose, windpipe and lungs are involved in the system
-We breathe in air, some which are nitrogen, some oxygen, and other gases
-We breathe out air, which contains carbon dioxide. Our lungs take in the oxygen, absorbing it into the bloodstream.
-All living things need to respire.
Respire = breathe

Categorize

Options (4)

Myna was wearing her shoes while listening to music.

Myna started to jog, slowly increasing her pace.

Myna was running as fast as she could to the end of the jogging track.

Myna stopped sprinting and walked quickly to catch her breath.

Organize these activities that Myna did that suit each part of the graph, A, B, C, D.

A

B

C

D

Drag and Drop

Myna breathes in

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and breathes out ​

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. She sometimes breathes in ​

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which is an inert gas that does not catch fire. Sometimes her breath contains ​

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that evaporated from her mouth. This is called ​

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Drag these tiles and drop them in the correct blank above

oxygen

carbon dioxide

nitrogen

water vapour

respiration

Drag and Drop

Plants trap ​

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, take in ​

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and absorb ​

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to make food. They produce ​

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and ​

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.

Drag these tiles and drop them in the correct blank above

carbon dioxide

glucose

oxygen

sunlight

water

Drag and Drop

But plants also take in ​

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to ​

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. They give out ​

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. The exchange of gases happen at the ​

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.

Drag these tiles and drop them in the correct blank above

oxygen

respire

perspire

carbon dioxide

stomata

phloem

xylem

roots

Draw

Draw an example of an activity that will cause your body to need more oxygen and your heart to pump faster.

(Any inappropriate images will be screenshot and sent to parent.)

​Plants

In short, plants make food only when there is light.

Plants respire all the time, day and night. All plants need oxygen to survive.

Gases will be given off and taken in through stomata present on the leaves.

Be sure of the variables needed for each of the 2 processes to occur.

Multiple Choice

Arawona placed a leaf in a beaker of water in the middle of the night. After an hour, she saw some bubbles on the leaf. The bubbles are ________.

• carbon dioxide

• oxygen

• nitrogen

• water vapour

What is limewater?

Limewater is a chemical liquid that turns white or chalky when there is carbon dioxide.

When we breathe out (exhale), the air that is exhaled contains carbon dioxide.

Therefore, when we breathe out into a straw in limewater, the limewater will turn white or chalky because there is carbon dioxide in the air that we blow out.

Watch the next video to see how it happens.

​The leaf that has more stomata, has more bubbles. This is because there are more gases (bubbles) leaving the stomata. The air is leaving the stomata in the form of tiny bubbles.

​Watch this video and try to find which leaf has more stomata.

Open Ended

Type one new thing you have learned from today's lesson: