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W-61 Why Do Plants Need Water?
Plants are living things.
Plants need water to live.
Water goes into the roots.
Roots are under the ground.
Water moves up the plant.
Water goes to the leaves.
Leaves make food.
Water helps mak...
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2
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W-56 How Do Seeds Grow?
Seeds are small.
Seeds are living things.
Seeds need water.
Water goes into the seed.
The seed wakes up.
Roots grow down first.
Roots find water.
A small stem grows up.
The stem goes to light....
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3
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W-56 Why Are Leaves Green?
Leaves are parts of plants.
Leaves are usually green.
Green comes from chlorophyll.
Chlorophyll is in the leaf.
Chlorophyll uses sunlight.
Sunlight helps make food.
Water and air help too.
Food...
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4
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W-59 How Do Roots Help Plants?
Roots are parts of plants.
Roots grow under the ground.
Roots hold the plant in place.
The plant does not fall.
Roots find water in soil.
Water goes into the roots.
Roots take in minerals too.
...
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5
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W-56 Why Do Flowers Bloom?
Flowers are parts of plants.
Flowers grow on plants.
Plants need to make seeds.
Flowers help make seeds.
Flowers bloom in warm time.
Sunlight gives energy.
Water helps the plant grow.
The bud o...
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6
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W-65 How Do Trees Drink Water?
Trees need water to live.
Trees drink water from the ground.
Roots grow under the ground.
Roots touch water in soil.
Roots take water in.
Water moves into the roots.
Water goes up the tree.
The...
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7
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W-51 Why Do Plants Need Sunlight?
Plants are living things.
Plants need sunlight to live.
Sunlight gives energy.
Leaves catch sunlight.
Leaves make food.
Water and air help too.
Food moves into the plant.
The plant grows strong...
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8
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W-58 How Do Seeds Travel?
Seeds are small.
Seeds move to new places.
Wind can carry seeds.
Light seeds fly in air.
Some seeds fall on land.
Animals help move seeds.
Seeds stick to fur.
Animals walk away.
Some animals e...
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9
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W-58 Why Do Leaves Fall?
Leaves grow on trees.
Leaves are green in warm time.
Cold weather comes later.
Days get shorter.
Trees get less sunlight.
Leaves stop making food.
The tree saves energy.
The tree closes the lea...
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10
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W-59 How Do Flowers Make Seeds?
Flowers grow on plants.
Flowers help make seeds.
Flowers have pollen inside.
Pollen is yellow dust.
Insects visit flowers.
Insects touch the pollen.
Pollen moves to another flower.
This is call...
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11
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W-67 Why Do Plants Have Stems?
Plants are living things.
Plants have stems.
A stem is a plant part.
The stem holds the plant up.
Leaves stay in the air.
Flowers stay in the air.
The stem moves water up.
Water comes from the ...
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12
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W-65 How Do Cactus Store Water?
Cactus live in dry places.
Rain does not fall often.
Cactus need to save water.
Cactus have thick stems.
The stem holds water inside.
The stem is soft inside.
Water stays in the stem.
The skin ...
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13
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W-50 Why Do Trees Have Bark?
Trees live on land.
Trees have bark.
Bark covers the tree.
Bark is thick and hard.
Bark protects the tree.
Cold weather comes.
Bark blocks cold air.
Hot sun shines.
Bark blocks strong heat.
I...
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14
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W-58 How Do Plants Grow Tall?
Plants start small.
Plants grow tall over time.
Roots grow under the ground.
Roots take in water.
Roots take in minerals.
The stem grows upward.
The stem holds the plant up.
Leaves catch sunlig...
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15
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W-60 Why Do Flowers Smell Good?
Flowers grow on plants.
Flowers make smells.
The smells are sweet.
Smell comes from tiny oils.
The oils are in petals.
Warm air spreads the smell.
Insects smell the flowers.
Insects like the sm...
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16
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W-59 How Do Roots Hold Plants?
Roots are parts of plants.
Roots grow under the ground.
Roots spread in the soil.
Soil holds the roots.
Roots grip the soil.
The plant stays in place.
Wind blows on the plant.
Roots keep the pl...
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17
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W-58 Why Do Plants Grow in Soil?
Plants grow in soil.
Soil is under the ground.
Soil holds the plant.
Roots grow in soil.
Roots grip the soil.
Soil has water inside.
Roots take in water.
Soil has minerals too.
Minerals help p...
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18
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W-65 How Do Sunflowers Follow the Sun?
Sunflowers are plants.
Sunflowers follow the sun.
This movement is slow.
Young sunflowers move more.
The stem bends during the day.
The flower faces the sun.
In the morning, it faces east.
The ...
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19
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W-62 Why Do Plants Need Air?
Plants are living things.
Plants need air to live.
Air is all around plants.
Leaves take in air.
Air goes into tiny holes.
The holes are on leaves.
Air helps make food.
Water and light help too...
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20
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W-56 How Do Plants Make Food?
Plants make food.
Plants use leaves.
Leaves are green.
Leaves catch sunlight.
Sunlight gives energy.
Plants take in water.
Water comes from roots.
Plants take in air.
Air goes into leaves.
Le...
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21
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W-53 Why Do Some Plants Have Thorns?
Plants grow on land.
Some plants have thorns.
Thorns are sharp parts.
Thorns grow on stems.
Animals like to eat plants.
Animals try to bite leaves.
Thorns hurt the mouth.
Animals stop eating.
...
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22
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W-52 How Do Trees Make Shade?
Trees grow tall.
Trees have big branches.
Branches hold many leaves.
Leaves spread wide.
Sunlight comes down.
Leaves block some light.
Less light reaches the ground.
The ground stays cooler.
A...
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23
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W-63 Why Do Plants Grow Slowly?
Plants are living things.
Plants grow slowly.
Plants do not move fast.
Plants stay in one place.
Plants need time.
Roots grow little by little.
Stems grow a bit each day.
Leaves grow slowly too...
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24
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W-56 How Do Plants Stay Alive?
Plants are living things.
Plants need water.
Roots take in water.
Plants need sunlight.
Leaves catch sunlight.
Plants need air.
Air goes into leaves.
Leaves make food.
Food moves through the p...
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교재보기
영어낭독
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25
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W-49 Why Do Plants Have Leaves?
Plants are living things.
Plants have leaves.
Leaves are green parts.
Leaves catch sunlight.
Sunlight gives energy.
Leaves take in air.
Air goes into leaves.
Leaves use water too.
Water comes ...
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교재보기
영어낭독
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26
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W-58 How Do Flowers Get Water?
Flowers grow on plants.
Flowers need water to live.
Roots take in water.
Roots grow under the ground.
Water goes into the roots.
The stem carries water up.
Water moves through the stem.
Water r...
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교재보기
영어낭독
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27
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W-56 Why Do Trees Lose Leaves?
Trees grow leaves.
Leaves help make food.
Cold weather comes later.
Days get shorter.
Trees get less sunlight.
Leaves make less food.
Trees save energy.
Trees stop sending water to leaves.
Lea...
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28
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W-58 How Do Plants Grow From Seeds?
Plants grow from seeds.
Seeds are small.
Seeds are living things.
Seeds need water.
Water goes into the seed.
The seed wakes up.
A root grows down first.
The root finds water.
A stem grows up ...
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29
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W-56 Why Do Plants Change Color?
Plants grow with green leaves.
Green comes from chlorophyll.
Chlorophyll helps make food.
Seasons start to change.
Days get shorter.
Sunlight becomes weak.
Plants make less food.
Chlorophyll br...
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30
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W-55 How Do Plants Help Animals?
Plants help animals.
Plants grow on land and water.
Plants make food.
Animals eat plants.
Plants make fruits and seeds.
Animals eat fruits and seeds.
Plants give shelter.
Animals hide in plants...
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31
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W-56 Why Do Plants Need Roots?
Plants are living things.
Plants need roots.
Roots grow under the ground.
Roots hold the plant in place.
The plant does not fall.
Roots take in water.
Water goes into the plant.
Roots take in m...
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교재보기
영어낭독
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32
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W-60 How Do Plants Stay in Place?
Plants stay in one place.
Plants do not walk or run.
Plants have roots.
Roots grow under the ground.
Roots spread in the soil.
Soil holds the roots.
Roots grip the soil tightly.
Wind blows on p...
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교재보기
영어낭독
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33
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W-62 Why Do Some Plants Grow Tall?
Plants grow on land.
Some plants grow very tall.
Plants need sunlight.
Sunlight comes from above.
Tall plants reach more light.
Leaves catch more sunlight.
More light makes more food.
Food help...
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34
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W-60 How Do Plants Live in Deserts?
Plants live in deserts.
Deserts are very dry places.
Rain does not fall often.
Desert plants save water.
Some plants have thick stems.
Stems store water inside.
Some plants have small leaves.
S...
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35
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W-48 Why Do Plants Grow in Spring?
Plants rest in winter.
Spring comes next.
Weather gets warmer.
More sunlight comes.
Rain falls more often.
Plants get water.
Roots wake up.
Stems start to grow.
Leaves open slowly.
Leaves cat...
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36
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W-59 How Do Plants Spread Seeds?
Plants make seeds.
Seeds move to new places.
Wind can carry seeds.
Light seeds fly in air.
Some seeds fall to the ground.
Animals help spread seeds.
Seeds stick to fur.
Animals walk away.
Some...
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37
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W-50 Why Do Plants Grow Toward Light?
Plants need light to live.
Light comes from the sun.
Plants grow toward light.
This movement is slow.
The stem bends toward light.
The leaves face the light.
Light helps make food.
More light m...
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38
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W-64 How Do Trees Grow Rings?
Trees grow rings inside.
Rings are inside the trunk.
Trees grow each year.
Spring comes each year.
Trees grow fast in spring.
Light wood grows first.
Summer comes later.
Trees grow more slowly....
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39
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W-51 Why Do Plants Have Flowers?
Plants have flowers.
Flowers grow on plants.
Plants need to make seeds.
Flowers help make seeds.
Flowers have pollen inside.
Pollen helps make seeds.
Flowers are bright and colorful.
Colors att...
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교재보기
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40
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W-55 How Do Plants Make Oxygen?
Plants make oxygen.
Plants use leaves.
Leaves are green.
Leaves catch sunlight.
Sunlight gives energy.
Plants take in air.
Air goes into leaves.
Plants take in water.
Water comes from roots.
...
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41
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W-61 Why Do Plants Need Soil?
Plants are living things.
Plants need soil to live.
Soil is under the ground.
Roots grow in soil.
Soil holds the plant.
The plant does not fall.
Soil has water inside.
Roots take in water.
Soi...
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교재보기
영어낭독
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42
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W-51 How Do Leaves Help Plants?
Leaves are parts of plants.
Leaves grow on stems.
Leaves are usually green.
Leaves catch sunlight.
Sunlight gives energy.
Leaves take in air.
Air goes into leaves.
Leaves use water too.
Water ...
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교재보기
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43
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W-58 Why Do Some Plants Float?
Plants live in water.
Some plants float.
Water holds the plants up.
These plants have light bodies.
Leaves are wide and flat.
Wide leaves spread on water.
Air stays inside the plant.
Air makes ...
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44
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W-58 How Do Plants Live Without Moving?
Plants live in one place.
Plants do not walk or run.
Plants use roots.
Roots stay in the ground.
Roots take in water.
Roots take in minerals.
Plants use leaves.
Leaves catch sunlight.
Leaves t...
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45
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W-50 Why Do Plants Grow Outside?
Plants grow outside.
Outside has sunlight.
Sunlight comes from the sun.
Plants need sunlight to live.
Outside has air.
Air moves around plants.
Leaves take in air.
Outside has rain.
Rain gives...
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46
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W-59 How Do Plants Stay Green?
Plants stay green.
Green comes from chlorophyll.
Chlorophyll is in leaves.
Leaves catch sunlight.
Sunlight gives energy.
Plants take in water.
Water comes from roots.
Plants take in air.
Air g...
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47
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W-53 Why Do Plants Grow After Rain?
Plants grow after rain.
Rain brings water.
Water goes into the soil.
Roots drink the water.
Dry roots wake up.
Water moves up the plant.
Leaves get water.
Leaves work better.
Sunlight comes af...
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48
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W-57 How Do Plants Get Food?
Plants get food.
Plants make their own food.
Plants use leaves.
Leaves are green.
Leaves catch sunlight.
Sunlight gives energy.
Plants take in water.
Water comes from roots.
Plants take in air...
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교재보기
영어낭독
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49
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W-52 Why Do Plants Stop Growing?
Plants are living things.
Plants do not grow all the time.
Cold weather can come.
Less sunlight is there.
Plants make less food.
Water can be low.
Dry soil has little water.
Plants save energy....
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50
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W-51 How Do Plants Change With Seasons?
Plants change with seasons.
Spring comes first.
Weather gets warm.
Plants start to grow.
Leaves open up.
Flowers can bloom.
Summer comes next.
Sunlight is strong.
Plants grow fast.
Leaves sta...
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