Revision sheet
Grade 3
Quarter 2
2020-2021
Name…………….....
1
Write the following words in suitable place
[ population- organism – ecosystem- community ]
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3
4
5
6
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8
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10
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Choose the correct answer :
1. A …………………. Is group of the same organisms
a. Community
b. Population
c. Organism
2. Many populations in the same area is ………………
a. Organism
b. Population
c. Community
3. All of the populations that live and interact in the same
ecosystem [area] is …………..
a. Ecosystem
b. Population
c. Community
4. An ………………… Is all living thing and nonliving thing in a place
[interact ]
a. Ecosystem
b. Population
c. Organism
5. ……………… includes salt water ,sea weeds, fish and other
animals
a. An ocean
b. Grassland
c. Forests
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6. Living thing in the same ecosystem ……………………….
a. Share resources
b. Don’t share resources
c. Migrate
7. A…………….Is the space where a plant or animal lives
a. Community
b. Population
c. Habitat
8. The crab’s habitat is a ………
a. Air
b. Sand
c. Grass
9. A frog’s habitat is a …………..
a. Sand
b. Forest
c. Pond
10.
a.
b.
c.
1.
a.
b.
c.
Everything that surround the living thing is its ………………
Environment
Population
Community
A …………..is the space where a plant or animal lives
Habitat
Population
Ecosystem
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2. A frog’s habitat is a………..
a. Desert
b. Grassland
c. Pond
3. Everything that surround the living thing is its ……………
a. Environment
b. Population
c. Organism
4. Yellow stone national park has a large population of
…………..
a. Frog
b. Bat
c. Bison
5. The ……………….ecosystem have a lot of trees
a. Ocean
b. Forest
c. Desert
6. The ……………….is warm and wet all year along
a. Grassland
b. Tropical rain forest
c. Ocean
7. The trees such as ……………..lose their leaves in the fall
a. Apple trees
b. Pine trees
c. Oak and maples
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8. Kangaroo rat, rattlesnake and cactus live in ………..
a. Grassland
b. Forest
c. Desert
9. The steller’s jay, mountain goats and pine trees live in
…………..ecosystem
a. Desert
b. Mountain
c. Grassland
10.
a.
b.
c.
The …………live in cactus and eat insects that live in cactus
Kangaroo rat
Rattlesnake
Elf owl
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Match
A
1. This saltwater
ecosystem covers
much of the earth's
surface.
B
mountain
2. This ecosystem's main desert
plant is grass.
3. This ecosystem has
river
the cactus, a plant that
stores water in its
stem.
4. Steller's jays and
mountain goats live in
this ecosystem.
grassland
5. Fox and deer drink the ocean
freshwater from this
water
Put these words in suitable place
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[Community – population – ecosystem – organism]
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Match
Draw the arrows in right direction
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Write the words in suitable place
Photosynthesis
Water - sunlight - sugar - oxygen carbon dioxide
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A
B
1. Erosion
It occurs
when it
doesn’t
rain for
along
time
1. Flood
Is when small pieces of rock are
carried away by water and
sometimes by
wind
1. Drought
Is a large amount of water that
covers normally dry land
1. Fire
cause
flame, heat,
smoke and
ash which
may change
ecosystem
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Circle things that help environment
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Arrange the following food chain :
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23
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25
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Write the suitable word
producer - consumer – decomposer
……………………………………………………………………………….
………………………………………………
……………………………….
………………………………………………
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Match
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Label the following landforms Using the following word:
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[Hill- canyon – plain – mountain – plateau – valley]
……………………………………………………
…………………………………….
………………………………………………………..
....................................
……………………………………………
………………………………………………………………………
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Match
A
B
The breaking down of rock
into smaller pieces.
Happens when soil, rocks,
or sand are moved.
1. Delta
2. Glaciers
3. Erosion
Is a large, thick sheet of
moving ice.
The rocks and soil are
dropped. In the end of the
river to form it
4. Weathering
True or false
1. Weathering can happen when tree roots push into
the surface of rock. [ ]
2. Wind, water, and glaciers can all cause erosion.[ ]
3. Glaciers cannot pick up pieces of weathered rock,
sand, and soil.[ ]
4. Weathering can happen when animals burrow into
the ground. [ ]
5. Weathering is often caused by patterns of freezing
and thawing [melting]. . [ ]
6. Erosion can ruin fields and forests by taking away soil
the plants need. . [ ]
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7. A river delta is full of rich soil. . [ ]
Arrange by numbers the following steps of weathering :
8.
9.
10.
11.
The water
12.
freezes
and
13.
takes 14.
up more
space
The ice widen
the cracks and
pieces of rocks
may break off
Water move
into cracks and
stays there
A. Choose the correct answer
1. A………………….is the breaking down of rock into smaller pieces.
a. Erosion
b. Earthquake
c. Weathering
2. ……………………..happens when soil, rocks, or sand are moved.
a. Weathering
b. Volcano
c. Erosion
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3. A………………….is a large, thick sheet of moving ice.
a. Glaciers
b. Erosion
c. Mountain
4. The rocks and soil are dropped. In the end of the river to
form..............
a. Delta
b. Erosion
c. Canyon
5. a\an ……………………is a shaking of Earth's surface that can cause
land to rise and fall.
a. Volcano
b. Earthquake
c. Land slide
6. a\an …………………….is a mountain made of cooled lava, ash, or
other materials from eruptions.
a. Earthquake
b. Volcano
c. Mudslide
7. A ................is a change that happens when streams, rivers, or
lakes get too full and overflow.
a. Flood
b. Volcano
c. Mudslide
8. The melted rock under the ground , called..............
a. Lava
b. Magma
c. Erosion
9. The melted rocks that come out the volcano called ……………
a. Magma
b. Lava
c. Weathering
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10. A…………………… is Too much rain in too short a period of
time.
a. Volcano
b. Landslide
c. Flood
True or false
1. Families don’t talk about what to do in an emergency. [ ]
2. Unlike earthquakes, volcanoes are caused by movements of
Earth's crust. [ ]
3. An earthquake can’t cause great damage over a small or
large area. [ ]
4. Earthquakes happen because of movements in Earth's crust.
[ ]
5. Buildings should be designed to withstand earthquakes. [ ]
6. The dirt slides down hill in mudslide or landslide. [ ]
7. The forest fire can’t be sparked by lightning, a bit of lava, or
a careless person. [ ]
8. It's best to prepare for a disaster before it strikes. [ ]
9. Keeping supplies in your car can help you be ready[ ]
10.
Exploding volcanoes can quickly change Earth's surface
[ ]
11.
In all volcanoes, lava gently oozes out [flow slowly] [ ]
12.
Some volcanoes grow larger with every eruption[ ]
13.
All the earthquakes are strong and cause a big change
to Earth's surface. [ ]
14.
Weathering can happen when tree roots push into the
surface of rock. [ ]
15.
Wind, water, and glaciers can all cause erosion.[ ]
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16.
Glaciers cannot pick up pieces of weathered rock,
sand, and soil.[ ]
17.
Families don’t talk about what to do in an
emergency. [ ]
18.
Unlike earthquakes, volcanoes are caused by
movements of Earth's crust. [ ]
19.
A flood is a change that happens when streams,
rivers, or lakes get too full and overflow.[ ]
20.
Earthquakes happen because of movements in
Earth's crust. [ ]
Some volcanoes grow larger with every
eruption[
21.
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A.Match
A
B
A shaking of Earth's surface
that can cause land to rise
and fall.
1. Magma
2. Earthquake
Is a mountain made of
cooled lava, ash, or other
materials from eruptions.
3. Flood
Too much rain in too short
a period of time
4. Volcano
The dirt slides down hill or
mountain because of rains
5. Land slide
Red-hot melted rock under
the ground
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46
Write the following landforms in suitable place
[Mountain – canyon – plain – hill – valley – plateau]
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50
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57
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59
Label the layers of soil in the following diagram :
Bedrock – topsoil – subsoil
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Match
Bedrock
Subsoil
Topsoil
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Match
A
1. Clay
2. Silt
3. Sand
B
Tiny particles of rock that
you can see with just your
eyes
Particles of rock that are
even smaller than silt
tiny particles of rock that
are difficult to see with only
your eyes.
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