Grade 3 Science: Plants

SCIENCE 3 Plants Look closely at each picture. Make comparisons of these plants by writing your observations in the blanks. Example: Mango Tree Color: Leaves are green and the trunk is brown. Size: It is big. Shape: It is rounded at the top. Source: http://commons.wikimedia.org/wiki/File:Mangifera_indica_old.JPG

1. Cactus

Color: ______________________________________ Size: _______________________________________ Shape: _____________________________________ Source: http://commons.wikimedia.org/wiki/File:Cactus_arizona2.jpg

2.

Pandan Color: ______________________________________ Size: _______________________________________

Source: http://commons.wikimedia.org/wiki/File:Pandan_(screwpine)_leaves.JPG

3.

Shape: _____________________________________

Pine Tree

Color: ______________________________________ Size: _______________________________________ Shape: _____________________________________ Source: http://commons.wikimedia.org/wiki/File:Bhutan_pine_tree.JPG

Science 3 LSM 2009-2010

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Prepared by: Mauie Flores www.the24hourmommy.com ©

Fill in the blanks with the correct answer. Choose your answers from the box. prop roots

woody stem

aerial root

stems

roots

trees

tubers

leaves

bulb

herbs

simple leaf

compound leaf

blade

rhizome

flower

fibrous root

petiole

tap root

runners

herbaceous stems

1. The ____________________ are parts of the plant that hold it on to the soil. They also get water and minerals for the plant. 2. The ____________________ is the part of the plant that carries water and minerals from the roots to the leaves. They also carry dissolved food from the leaves to the other plants of the plant. 3. The ____________________ are parts of the plant that make food. 4. The ____________________ are the parts of the plant that contain the seeds. 5. Secondary roots branch out of the ____________________. Then, tiny root hairs grow at the tip of the secondary roots. 6. In a ____________________ system, secondary roots grow in all directions. Some are as long or even longer than the primary root. 7. ____________________ grow from the lower part of the stem to help support the plant. Even when the wind blows hard, the plant remains erect. 8. ____________________ cling to the branches of a tree and get water from the air. 9. Stems that are brown and hard are called ____________________. 10. ____________________ are green or white and are soft and fleshy. 11. ____________________ are swollen underground stems. An example of these is the potato plant. 12. A ____________________ is an underground stem that grows horizontally or vertically. 13. An onion is an example of a ____________________. The swollen and fleshy leaf bases have stored food. 14. A strawberry plant has horizontal stems called stolons or ____________________. These stems grow along the surface of the ground. 15. The ____________________ is the leaf stalk that connects the leaf to the stem. 16. The ____________________ is the broad flat part of the leaf. 17. A ____________________ has only one blade attached to the petiole. 18. A ____________________ consists of many blades attached to one petiole. 19. ____________________ are tall plants with big woody stems. Science 3 LSM 2009-2010

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20. Plants with soft, green, fleshy stems are called ____________________. They can be tall or short. Write the following plants under the correct grouping.  Sunflower  Moss  Fern  Rice  Mango FLOWERING

    

Horsetail Melon Pine Grass banana

NON-FLOWERING

Write T for tree, S for shrub, and H for herb. ______ 1.

pine

______ 6.

camia

______ 2. sampaguita

______ 7. rosal

______ 3. gumamela

______ 8. mayana

______ 4. false bird of paradise

______ 9. guava

______ 5. coconut

______ 10. mahogany

Match the plant to the ailment that it can heal. Write the letters only. ______ 1.

Ampalaya

a. diarrhea and stomachache

______ 2. Banaba

b. Cough

______ 3. Bayabas

c. Toothache

______ 4. Eucalyptus

d. Fever, cough, asthma

______ 5. Gumamela

e. Asthma, cough, bronchitis

______ 6. lagundi

f.

Boils and burns

Give 5 uses of plants. 1.

___________________________________________________________________

2.

___________________________________________________________________

3.

___________________________________________________________________

4.

___________________________________________________________________

5.

___________________________________________________________________

Science 3 LSM 2009-2010

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Prepared by: Mauie Flores www.the24hourmommy.com ©

Give 3 ways on how you can take care of plants. 1.

___________________________________________________________________

2.

___________________________________________________________________

3.

___________________________________________________________________

Give 3 ways on how you can conserve plants. 1.

___________________________________________________________________

2.

___________________________________________________________________

3.

___________________________________________________________________

Give 3 precautionary measures that you can take in handling plants. 1.

___________________________________________________________________

2.

___________________________________________________________________

3.

___________________________________________________________________

What should you do in case your finger is pricked by a thorn or slashed by a sharp leaf? ____________________________________________________________________________________ What should you do when pollen gets in your eyes? ____________________________________________________________________________________ What should you do when rashes appear on your skin after touching a certain plant? ____________________________________________________________________________________ What should you do when you in case of plant poisoning? ____________________________________________________________________________________

Science 3 LSM 2009-2010

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Prepared by: Mauie Flores www.the24hourmommy.com ©

Science 3 LSM 2009-2010

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Prepared by: Mauie Flores www.the24hourmommy.com ©