Transcript Science Review

Science Review
4th Grade
What do we call each stage
of the water cycle?
Answer
Water travels in a never-ending cycle
of precipitation, accumulation,
evaporation, and condensation.
The steam coming
from this cup is __.
a)
b)
c)
d)
water vapor
smoke
Precipitation
condensation
The steam coming
from this cup is __.
a) water vapor
Answer
We cannot see
water vapor. It is
invisible!
b)
c)
d)
smoke
Precipitation
condensation
What is evaporation?
Answer
The sun heats the water and causes it to change
to water vapor, which then rises into the air.
What do we
call high
wispy
clouds?
What do we
call high wispy
clouds?
Answer
Cirrus
Clouds
Name 3 different places that
water accumulates.
Run-off takes
water to lakes,
rivers, and
oceans. Water
is also stored
underground,
called
groundwater.
Answer
What will the weather be in the near future? Why?
A.
B.
C.
D.
Harsh storms followed by cooler temperatures
Gentle rain followed by cooler temperatures.
Gentle rain followed by warmer temperatures.
Harsh storms but no change in temperature.
Answer
What will the weather be in the near future? Why?
A. Harsh storms followed by cooler temperatures
B. Gentle rain followed by cooler temperatures.
C. Gentle rain followed by warmer temperatures.
D. Harsh storms but no change in temperature.
Clouds are made
mostly of ___.
a)
b)
c)
d)
water vapor
water droplets and dust
salt from the ocean
fog
Clouds are made
mostly of ___.
a)
water vapor
Answer
b) water droplets and dust
c)
d)
salt from the ocean
fog
What is this
instrument
and what
does it do?
A
thermometer
measures
Answer
temperature.
Answer
What type of cloud is
usually associated
with fair weather?
Cumulus clouds are often
called fair weather
clouds.Answer
These are the
white, puffy clouds that
we might use to find
shapes or pictures.
Explain how condensation
forms clouds.
Answer
When warm air rises, and then cools, the water vapor in the
air changes into tiny water droplets. The droplets come
together around dust particles to make clouds.
What does
the blue “H”
mean, and
what type of
weather is
associated
with it?
The H means
high pressure.
Answer
The weather
associated
with high
pressure is
cool and dry.
Water vapor condenses
when the air gets ____.
a) warmer
b) cooler
Water vapor condenses
when the air gets ____.
Answer
a) warmer
b) cooler
What do we call a
cloud that is close
to the ground?
A cloud close
Answerto the ground
is called fog.
If cumulonimbus
clouds are in the sky,
what kind of weather
should we expect?
If cumulonimbus
clouds are
in the sky, we
Answer
should expect rain or
thunderstorms.
Name 3 different types of precipitation.
Answer
Precipitation will fall as rain, snow, sleet, or
hail, depending on the temperature.
What type of clouds
cover the sky like a
blanket, making it gray
and overcast?
Stratus clouds cover
the skyAnswer
like a blanket,
making it gray and
overcast.
What part of the water cycle is
demonstrated in this picture?
Liquid turning into a gas is
evaporation.
Answer
At what temperature
does water boil?
Water boils at
o
Answer
212
Fahrenheit.
What is this
instrument
and what
does it do?
A wind vane
shows the
Answer
direction of
the wind.
What do
we call
puffy, white
clouds
that are
associated
with fair
weather?
Puffy, white
clouds that
are associated
Answer with fair
weather are
called cumulus
clouds.
What does this
symbol mean?
A red line with red
half circles shows a
warm front.
Answer
The direction of the half
circles show the
direction that the
front is moving.
What type of
front is this?
How do you
know?
A.
B.
C.
D.
Warm front because the warm air is on top
Stationary front because no mass is moving.
Cold front because it has been cold for weeks.
Cold front because the cold air mass is moving
into the area, pushing up the warmer air.
5. What type of
front is this?
How do you
know?
Answer
A.
B.
C.
D.
Warm front because the warm air is on top
Stationary front because no mass is moving.
Cold front because it has been cold for weeks.
Cold front because the cold air mass is moving
into the area, pushing up the warmer air.
1. What type of front does this symbol
represent?
A. Cold Front coming from
the northeast
B. Warm Front coming
from the northeast
C. Cold Front moving
toward the northeast
D. Warm Front moving
toward the northeast
1. What type of front does this symbol
represent?
A. Cold Front coming from
the northeast
B. Warm Front coming
from the northeast
C. Cold Front moving
toward the northeast
D. Warm Front moving
toward the northeast
Answer
This front formed when___.
A. a cold air mass rushed under a warm air mass forcing the
warm air to rise
B. a moist, warm air mass slid up and over a cold air mass.
C. warm and cold air met and neither air mass had the force to
move the other.
Answer
This front formed when___.
A. a cold air mass rushed under a warm air mass forcing the
warm air to rise
B. a moist, warm air mass slid up and over a cold air mass.
C. warm and cold air met and neither air mass had the force to
move the other.
What tool is used to
measure temperature?
A
thermometer
is used to
Answer
measure
temperature.
What type of precipitation
appears in the oval? Explain why.
Answer
Snow forms when water vapor freezes,
and stays frozen as it falls to Earth.
What is the
purpose of an
anemometer?
An
anemometer
Answer
measures
wind speed.
At what temperature
does water freeze?
Water freezes
o
Answer
at 32
Fahrenheit.
What is the
purpose of a
barometer?
A barometer
measures air
pressure. The air
Answer
pressure helps
predict the
weather.
What tool is
used to
measure
precipitation?
How does it
work?
A rain gauge
measures the
amount of
precipitation.
Measurements on
the container show
the number of
inches or
centimeters of rain.
Answer
What type of precipitation
appears in the circle? Explain why.
Answer
Sleet forms when snow passes through
warm air, melts, and then refreezes.
Ecosystem Review
4th Grade
If a lion is hunting a badger,
the lion is the
__________________ and the
badger is the _____________.
If
a
lion
is
hunting
a
If a lion is hunting a badger,
Answer
badger,
the
lion is
the lion
is the
__________________
and
the
the predator and the
badger is the _____________.
badger is the prey.
What is the role of a
producer in a food web?
The role of a producer in
a food web is to produce
Answer
energy from the sun.
What do we call
overlapping food chains?
Overlapping food
chains are called
food webs. Webs
show how animals
rely on other living
things, and show the
competition for food.
Answer
What is the role
of a decomposer
in a food web?
In a food web, the role
of a decomposer is to
break down
dead plants
Answer
and animals.
What do all first-level
consumers eat?
First-level
consumers
Answer
eat plants, or
producers.
Name 2 organisms in this web
that are prey to other animals.
Answer
The rabbit and the deer are both prey to
the mountain lion. The rabbit, mouse,
frog, and snake are prey to the hawk.
What do the arrows in a
food web represent?
Answer
The arrows in a food web show
the transfer of energy from one
organism to another.
What might happen in this ecosystem
if the hawks moved away?
Answer
If the hawks moved away, there might
be an over-population of frogs.
What is an omnivore?
An omnivore eats both
plants and animals.
Answer
Name an organism in this food web
that is both predator and prey.
Answer
In this food web,
the snake is both
predator and
prey. The snake
is predator to the
mouse and prey
to the hawk.
In this food web, the frog is also both
predator and prey. The frog is predator to
the cricket and prey to the hawk.
What is the term used to
describe each living
organism’s specific role
in the habitat?
Each living organism’s
Answer
specific role in the
habitat is called a niche.
What do we call a group
of the same kind of plant
or animal living in the
same ecosystem?
A group of the same kind
of plant Answer
or animal living
in the same ecosystem is
called a population.
What do we call the
living organisms in an
ecosystem?
The living organisms in
an ecosystem
are called
Answer
biotic. Bio- means life.
What type of consumer
eats only plants?
Herbivores
are consumers that
Answer
eat only plants.
Where do producers
get their energy?
Producers
get their
Answer
energy from
the sun.
What is a community?
A community is all the
differentAnswer
populations of
plants and animals in an
ecosystem.
Name 3 abiotic, or
non-living, parts of an
ecosystem.
The abiotic, or
non-living, parts
of an ecosystem
include sunlight,
soil, wind, water,
and rocks.
Answer
What type of consumer
eats only other animals?
Carnivores
are consumers that only
eat
other
animals.
Answer