Cardiff International School Dhaka (CISD)
Lost Class Make Up Assignment
Class: 3, Section: A, B
Subject: Science
st
Date: 1 (Sunday)-7th (Saturday) February 2015
Total Mark- 20
Instructions: All of your assignment must be done in A4 size paper. Mention your
Name, Class, Roll and Section clearly on the top sheet of your assignment.
Submission Deadline: Saturday 7th February 10.00 AM to the respective subject
teacher. The deadline is strict.
Name:.........................................................................................................................................
Class: ....................Roll#........................Sec:..................Teacher: .........................................
Sunday-Saturday
01-07 February 2015
Date: 01 February, 2015, Sunday
Lesson: Adaptations in Plants, Page: 57 – 65
Task: Read the pages carefully and complete the following Worksheets
Worksheet/Exercise:
Multiple Choice Questions:
1.
Sally started growing a plant from a bulb. Each day she made sure
the
plant was receiving light, water, milk, and air. Which of the following was not a
necessity for the plant?
A.
light
B.
water
C.
milk
D.
air
2.
What is not required for a seed to begin to grow?
A.
stored water
B.
stored nutrients
C.
sunlight
D.
appropriate temperature
3.
Cactus plants grow best in environments that are
A.
hot and dry
B.
hot and wet
C.
cold and dry
D.
cold and wet
4.
A plant’s life begins with
A.
the root
B.
the formation of leaves
C.
the seed
D.
the stem
5.
Which part of the plant makes seeds?
A.
root
B.
flower
C.
stem
D.
leaf
6.
Which of the following illustrates the plant life cycle in the correct order?
A.
roots, flowers, stems, seeds, leaves, fruits
B.
leaves, seeds, flowers, roots, fruits, stems
C.
seeds, roots, stems, leaves, flowers, fruits
D.
fruits, flowers, leaves, roots, stems, seeds
7.
What happens to plants that receive less water than others?
A.
they grow faster
B.
they are bigger
C
they grow slower than others
D.
they produce more flowers
8.
What 3 things does a plant need to grow?
A.
light, weeds, moon
B.
water, light, air
C.
milk, light, weeds
9.
What does a seed need to begin to grow?
A.
stored water, sun, weeds
B.
stored nutrients, moon, and water
C.
water, nutrients, and the right temperature
10.
Cactus plants grow best in places that are
A.
B.
C.
hot and dry
hot and wet
cold and dry
11.
What makes a house plant grow toward the window?
A.
the sun made the plant grow that way
B.
the air made the plant grow that way
C.
the plant just turned that way
12.
Which part of the plant makes seeds?
A.
root
B.
flower
C.
stem
13.
What is the correct plant life cycle (1st, 2nd, 3rd, 4th, 5th, 6th)?
A.
roots, flowers, stems, seeds, leaves, fruits
B.
leaves, seeds, flowers, roots, fruits, stems
C.
seeds, roots, stems, leaves, flowers, fruits
Date: 3rd February, 2015, Tuesday
Topic: Adaptations in Plants
Page: 57 – 65
Task: Standards-Based Reading Questions
How are Plants Built to Survive?
Like all living things, plants are built to survive. They can’t run around to get food, escape from
predators, or reproduce, so they’ve developed other ways to accomplish these important tasks. For
example, plants get their food from the sun by soaking up the sun’s energy through their leaves. But
sometimes, another tree grows over the first one, blocking the sun. How is the smaller plant built to
survive this problem? If that smaller plant is a tree, it can grow its trunk sideways to bend around the
shade and towards the sunlight. It can also grow larger leaves, to catch more sunlight. If the smaller
plant is a vine, it can grow and crawl up the bigger tree until the top of the vine reaches above the
shade. If it is a wildflower, some flower’s seeds are attached to fluffs (like dandelions), and they can
blow away to a sunnier spot to live.
Plants must also deal with predators in their environments. Trees grow thick bark to keep predators like
insects, deer, and woodpeckers away from their wood. Many vines grow protective thorns to prick
dangerous animals that try to eat them. Wildflowers may be spiny or poisonous, or just taste bad. These
adaptations make the plant less attractive or even dangerous to animals that might want to eat it. Plants
must also find ways to reproduce. They must spread their pollen to get seeds to grow, and they must
also protect their seeds. Some plants, like pine trees, have pollen that is spread by the wind. Other
plants, like beautiful daisies, attract hungry bees and butterflies with sugary nectar. While the bees and
butterflies are eating, pollen sticks to their legs. These pollen-covered insects then travel to another
flower, spreading pollen to each flower they visit. This helps the plant reproduce and start to grow
seeds.
As the seeds are growing, plants must protect them from animals that could eat them. Some vines (like
blackberry vines) grow fruits that taste very bitter until the seeds are ripe. That stops animals from
eating the seeds when they are too young and might be destroyed in the animal’s stomach. Some trees,
like hickories, grow a tough covering around their seed called a nut. This nut is very hard for animals to
chew through. Other trees, like pines, hide their seeds inside spiny pinecones. Animals trying to eat
these seeds might get poked. Many wildflowers protect their seeds in a different way. They produce
hundreds of seeds, so if a few get eaten or smashed; there will still be plenty left to grow more
wildflowers.
Even though plants can’t run or fight or move around, they still have many adaptations that help them
to get food, deal with predators, and reproduce. If you study any plant long enough, you’ll start to figure
out what makes it a survivor.
Standards-Based Reading Questions:
1. Which of the following is NOT discussed as an important task for plants in this article?
a) Reaching sunlight
b) Stopping animals from eating them
c) Protecting their seeds
d) Getting enough water
2. Based on your reading of the article, write three ways that a tree is built to overcome problems. Use
information from the text to support your answer
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3. Based on your reading of the article, what is the meaning of the word “adaptation”?
a) How a living thing is built to survive
b) How a living thing moves around it its environment
c) How a living thing escapes
d) How a living thing meets other living things
Date: 4th February, 2015, Wednesday
Topic: Adaptations in Plants
Page: 57 – 65
Task:Read the pages thoroughly and Answer the following questions:
A. Choose the correct answer:
1. What these different plants are?
(i) My sharp spines are really leaves that help me to survive.
(ii) They call me a plant but I cannot make my own food.
(iii) When any insect lands on my leaf, I catch it and eat it.
2. What are they called?
(i) Plants that live on land.
(ii) Water plants
(iii) Plants that eat insects
(iv)Trees that do not lose their leaves in winter
(v) Trees that lose their leaves during winter.
3. Which type of terrestrial plants give us food?
4. How do the following help these plants to survive?
(i) Roots of a mangrove tree
(ii) The stem of a cactus plant
(iii) The sloping shape of conifers
5. Where do we grow tea-plants?
6. Why do some trees lose their leaves in winter?
7. Name one plant which eats insects?
8. Why do some plants eat insects?
9. Some desert plants have roots that go very deep inside the soil. Why?
B. Match the following:
(i) pine
(a) evergreen tree
(ii) rice
(b) fixed aquatic plant
(iii)lily
(c) a plant of the grass-family
Text Book/Reference Book: I Explore a Science Textbook 4
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