What comes out of the Darken the bubble next to your answer... Darken the bubble next to your answer... 2-5.3, 2-1.3 Objects on a table Sticks to magnet Does not stick paper clip crayon
Trang 2Read about a forest Then answer questions 1, 2, and 3.
What is a forest like all year? In summer, the forest
is very warm Leaves on trees are green Animals find food In fall, the weather gets cool Many leaves change color They fall to the ground In winter, forests are cold Some are covered with snow Food is hard to find In spring, days get warmer Leaves grow back
Trang 31 When is food hard to find? 2-2.3
summer fall
winter
2 What happens after leaves fall? 2-3.3
The forest becomes colder
Food gets easier to find
Leaves turn green
3 When is the forest very warm? Write the name of
the season. 2-3.3
summer
Trang 44 What kind of living thing is a bird? 2-2.2
animal plant insect
5 What do some animals get from trees? 2-2.4
air and water food and shelter soil and heat
6 A butterfly egg hatches What comes out of the
Darken the bubble next to your answer.
Trang 57 What helps a polar bear live in the cold? 2.2.3
long teeth horns thick, white fur
8 Which animal hunts in the forest at night? 2.2.3
9 What kind of animal is a snake? 2.2.2
a fish
an insect
a reptile
Trang 6The graph shows the rainfall in the Florida Everglades.
Everglades Rainfall in the Fall
It rains more and more each month
It rains less each month
It rains the same each month
11
What does the flag help you tell about the weather? 2-3.1
It is cloudy It is cold It is windy.
Darken the bubble next to your answer.
Trang 7Use the calendar for questions 13 and 14.
Monday Tuesday Wednesday ThursdayJ
J
Monday and Tuesday Tuesday and Wednesday Wednesday and Thursday
14 When did the weather change the most?
2-3.2, 2.1.4
from Monday to Tuesday from Tuesday to Wednesday from Wednesday to Thursday
Trang 816 You and your dad are rowing on a lake You see
a storm coming What should you do? 2-3.6 Let your boat float
Get to the shore quickly
Wait to see if the storm passes by
Each one has a shape of its own
They take the shape of the container they are in
They can bend or tear
18
You put a box of crayons in one pan of a balance
You put a box of pencils in the other pan The pan with the crayons drops down What can you tell about the crayons? 2-4.1, 2-1.2
Darken the bubble next to your answer.
Trang 919 You are working with sand and water Why should
you wear goggles? 2-4.1, 2-1.5
to see the sand better
to keep the sand out of your eyes
to keep sunlight out of your eyes
20 You stir sand into a glass of water Then you
stop stirring What happens? 2-4.4, 2-1.1
The sand floats to the top
The sand drops to the bottom
The sand stays mixed with the water
Trang 1022 You have a dish of ice cream The ice cream is
soft and soupy How can you make it harder?
2-4.3, 2-1.1 Put it in the freezer
Squeeze it
Wrap it with foil
23 You stir a small spoonful of sugar into a tall glass
of water What happens? 2-4.4, 2-1.1 The sugar floats to the top
The sugar drops to the bottom
The sugar stays mixed with the water
24 Which of these has a mark in the wrong place?
2-5.3, 2-1.3
Objects on a table
Sticks to magnet
Does not stick
paper clip crayon
Darken the bubble next to your answer.
Trang 1125 Tie a string to a paper clip Have a friend hold the
string The paper clip should hang down Bring a
magnet close to the paper clip What happens to
the paper clip? 2-5.1, 2-1.1
It moves to the middle of the magnet
It moves away from the magnet
It moves to a side of the magnet
It can help heat up a meal
It can tack a shopping list to the refrigerator
It can help open a box top
27
What happens as you move these two magnets
closer together? 2-5.2
They pull each other together
They push each other away
You will feel no push or pull
Trang 12How are insects and spiders alike? They are both animals Both have a hard outer covering The covering helps keep them safe They both have legs
Their legs help them climb, crawl, or jump How are insects and spiders different? Count the legs An insect has 6 legs A spider has 8 legs
Read about insects and spiders Then answer questions 1, 2, and 3.
Trang 131 What kind of living thing is an insect? 2-2.2
animal plant bird
fly climb or crawl swim
3 You think you see an insect However, it has 8 legs
What is it? Write your answer. 2-2.2
Spider
Trang 144 What do all animals need to live? 2-2.1
food, water, air clothes, a place to live, air food, soil, air
butterfly chicken fish
6 You hold a pet mouse at school Then you put it
back in its cage What should you do next? 2-2.1, 2-1.5
Feed the mouse
Wash your hands
Keep the cage open
Darken the bubble next to your answer.
Trang 157 What body part helps a turtle stay safe? 2-2.2
lungs fins hard shell
8 What does kelp give many ocean animals?
2-2.4
air and sunlight warmth and food food and shelter
9 What can plants do that animals cannot do?
2-2.4
grow make food get water
Trang 1610 What do all reptiles have? 2-2.2
scales fur wings
spider caterpillar chick
12 Which animal is in the wrong place in the table?
2-2.2, 2-1.3
Different Animals
sheep dog duck
Darken the bubble next to your answer.
Trang 1713 What does a parrot have in a tropical rain
forest? 2.2.3
cool, dry air food and shelter cool, wet air
14 A horned lizard lives in a desert What can you
infer about this animal? 2-2.3
It lives with little water
It can become very large
It lives high up in tall trees
15 Fill two jars with water Add 2 teaspoons of salt to
only one jar Add ten brine shrimp to each jar
2-2.3, 2-1.1
What question are you trying to answer?
How big do brine shrimp grow?
What kind of water do brine shrimp live in?
Do brine shrimp lay eggs?
Trang 1816 What can you infer about animal A? 2-2.2, 2-1.4
It is heavier than animal B
It is smaller than animal B
It walks on two legs
hair or fur
scales
feathers
Darken the bubble next to your answer.
Trang 1919
What starts this food chain? 2-2.4
20 Which of these things do animals need from
plants? 2-2.4
soil oxygen water
Trang 20Keep track of your weather Use a rain gauge to measure the rain on any day Use a wind sock to tell the direction the wind is blowing The wind sock helps you tell how strong the wind is When a wind sock blows out straight, the wind is strong See if the sky has clouds.
Read about how to track the weather
Then answer questions 1, 2, and 3.
Trang 211 The wind is strong How does a wind sock look?
2-3.4, 2-1.2
2 Which of these rulers shows
the most rain? 2.1-2; 2-3.2; 2-3.4
3 You went on a trip Your rain gauge is full
What happened while you were on vacation?
Write your answer
Trang 22Look at the table Then answer questions
4 and 5.
Wind Scale
3 gentle breeze 8 –12 miles per hour
6 strong breeze 25–30 miles per hour
9 very strong wind 47–54 miles per hour
12 hurricane more than 73 miles per hour
calm gentle breeze strong breeze
5 A wind blows your hat off What number could
it be? 2-3.1 0 3 9
Darken the bubble next to your answer.
Trang 236 A thermometer breaks The grey liquid spills out
What is the safe thing to do? 2-3.2, 2-1.5
Touch the liquid
Tell your teacher
Tell your friends
Trang 24Ty drew a picture of the weather each day Look at his calendar Answer questions 9, 10, and 11.
9 Which other day had weather like Tuesday?
2-3.5, 2-1.3 Wednesday Thursday Friday
Monday Tuesday Wednesday
Thursday Friday
Darken the bubble next to your answer.
Trang 2512 A storm is coming What should you do? 2-3.6
Stay indoors
Stand under a tree
Go for a quick bike ride
13
What can you infer from these pictures?
2-3.4, 2-1.4
The winds were stronger on Saturday
Monday was cooler than Saturday
Both days were sunny
fall winter summer
Trang 2615 How do you know when it is fall? 2-3.2, 2-1.4
Leaves grow
Leaves turn colors
Trees have no more leaves
Mary drew a bar for the average temperature
in her town However, she thinks she mixed
up two of the bars Which two bars are mixed up? 2-3.3, 2-1.3
spring and summer winter and spring summer and fall
Darken the bubble next to your answer.
Trang 2718 Which tool is the most helpful to measure
weather? 2-3.2, 2-1.2
19 You are swimming You see a storm coming
What should you do? 2-3.6
Float on your back
Get out of the water
Wait to see if the storm passes by
20 When are there more hours of daylight than
of night? 2-3.3
winter fall summer
Trang 28Make a salad for lunch Cut some tomatoes Chop a green pepper Tear some lettuce Put them all together into a bowl
Pour some chopped nuts on top Put a cover on the bowl and shake Now open the bowl Think again Mom does not like nuts It’s not too late to take them out
Read about a salad Then answer questions 1, 2, and 3.
Trang 29You can see them in the salad.
They are bigger than the other parts of the salad
They are still on top of the salad
3 What can you use to get the nuts out? Write your
answer. 2-1.4; 2-4.4
a spoon or fork
Trang 304 What does a balance measure? 2-4.1, 2-1.2
size mass temperature
5 What happens to juice if you put it in the
freezer? 2-4.3
It gets heavier
It gets darker
It becomes a solid
6 Mark spilled bits of iron into a cup of salt What
could he use to get the bits of iron out? 2-4.4
Darken the bubble next to your answer.
Trang 317 You folded a sheet of paper How did the
It gets hard and cracks
9 Luiz collects rocks He sorts them by shape
Which graph did he draw? 2-4.1, 2-1.3
0
5 10 15 20 25 30
My Rocks
0
5 10 15 20 25 30
My Rocks
0 Small Medium Large 5
10 15 20 25 30
My Rocks
Trang 3210 You put a pencil on a balance Which measurement
could you get? 2-4.1, 2-1.2
5 grams
5 mL 5˚F
11 You are mixing sand and water What should you
be wearing for safety? 2-4.1, 2-1.5
12 You mix sugar and water in a glass You let it stand
uncovered A week goes by Then you see a whitepowder in a dry glass What do you think
happened? 2-4.4, 2-1.4 Someone changed the glass
The water dried up and left the sugar behind
Somebody poured the water and sugar out
Darken the bubble next to your answer.
Trang 3313 Which of these can you bend? 2-4.3
rock paper clip baseball bat
15
How are these boats different? 2-4.1
shapesizecolor
Trang 34A class has a box of pencils, crayons, and markersmixed together.
Look at the graph Then answer 16, 17, and 18.
5 2 3
Darken the bubble next to your answer.
Trang 3519 You stir a teaspoon of sand into a cup of water
Stir a teaspoon of salt into another cup of water
Both sand and salt stay mixed
shape size color
21 Which of these melts only when it is very
gold butter ice
Trang 36The junkyard had a pile of junk The pile was made of rubber tires and paper It also had pieces of metal.
Amber drove her truck up to the pile The crane had a big round magnet on a chain The chain lowered the magnet over the trash Things jumped up from the junk pile They stuck to the magnet
Read about Amber’s truck Then answer questions 1, 2, and 3.
Trang 371 What did you learn about magnets from Amber’s
story? 2-5.1, 2-1.4
All strong magnets are round
Magnets can move things without touching them
Round magnets are stronger than bar magnets
Use a thicker chain
Put two round magnets on the chain
Lower the chain very slowly
3 What things do you think stuck to the magnet?
Write your answer. 2-5.3
metal objects
Trang 384 Sam and Rob each held a bar magnet on a string
The magnets moved toward each other What can you infer? 2-5.2, 2-1.4
Opposite poles were facing each other
Like poles were facing each other
One magnet was not made of metal
5 Jamal moved a magnet closer and closer to an
iron bar What did he find out? 2-5.1, 2-1.4 The iron bar did not move
The magnet became hot
The iron bar moved toward the magnet
Trang 397 What are the poles of a magnet called? 2-5.2
North and South East and West Middle and End
Read about Olivia’s magnets Then answer
questions 8 and 9.
Olivia has five little round magnets She put the
magnets on a table Then she found a large bar
magnet She moved the large magnet back and
forth under the tabletop
Magnets can get warm
The bar magnet pulled the small round magnets
The wood made the magnets move
Magnets can pull through a table
A table blocks the pull of a magnet
The table acts like a magnet
Trang 40Read about the experiment Then answer questions 10, 11, and 12.
Tie a string to a pencil Tie a magnet to the end of the string Put some small things in a bag Then use the fishing pole magnet to fish out things from the bag
peas screws crayons
11 How can you make the fishing pole magnet
stronger? 2-5.3, 2-1.1 Make the string longer
Tie two magnets to the end of the string
Darken the bubble next to your answer.
Trang 4113 Things on
table
Sticks to magnet
Does not stick
14 José put five magnets one on top of the other
What did he discover? 2-1.4, 2-1.1
More magnets are weaker than one
More magnets are stronger than one
More magnets act the same as one
15 Gloria used a horseshoe magnet and a bar
magnet to pick up paper clips What can you tell
from the graph? 2-5.3, 2-1.3
Kind of Magnet
Number of Paper Clips
The horseshoe magnet is stronger
The bar magnet is stronger
Trang 4216 Where is the pull of a magnet the strongest? 2-5.1
in the middle
at the poles
at the N pole only
17 These two magnets are pushing each other
away What letter would you write in the blank circle? 2-5.2, 2-1.4
S E N
to Earth’s magnetic North Pole
to Earth’s magnetic South Pole
to the Sun
Darken the bubble next to your answer.
Trang 4319 Mark has a bar magnet He holds one end near a
paper clip The paper clip does not move What does
he have to do to make the clip move? 2-5.1, 2-1.4
Turn the magnet around
Shake the magnet
Move the magnet closer to the paper clip
20 You lower a magnet over each box What
moves? 2-5.3, 2-1.1
a crayon
a feather
a nail
21 A glass is filled with water A paper clip is at the
bottom of the glass You hold a bar magnet next to
the bottom of the glass What happens? 2-5.1, 2-1.1
The magnet pulls the paper clip
The water spills over the glass
The paper clip floats
Trang 44Many animals hatch from eggs Birds, fish, insects, amphibians, and reptiles all hatch from eggs Many animals lay hundreds of eggs Not all of these eggs hatch Some animals take care of their young Other animals never even see their young hatch Some young animals look very similar to adult animals
Some animals look very different Does a chick look like a chicken? Does a caterpillar look like a butterfly?
Read about young animals Then answer questions 1, 2, and 3.
Trang 451 What happens after a chick hatches from
3 When a frog’s egg hatches, what comes out
of the egg? Write your answer. 2-2.5
tadpole
Trang 464 What kind of living thing is a fish? 2-2.2
animal plant insect
5 Which place has the least water for plants and
animals? 2-2.3 rain forest pond
desert
trees, warmth, and light food, air, and water shade, heat, and sound
Darken the bubble next to your answer.