Science 3G Ch 1b Where Living Things are Found Science Review Chapter 1b Flash Cards!
Science 3GCh 1b
Where Living Things are FoundScience
ReviewChapter 1b Flash Cards!
Science 3GCh 1b
A forest of trees that form seeds in a cones is a
coniferous forestConiferous forests grow where weather is very
cold. Coniferous trees are evergreen, like Christmas trees and do not loose their
needle-like leaves.
Science 3GCh 1b
A ____ is an area of land that contains very little rainfall.
desert
Science 3GCh 1b
An area where the main plants are trees is called a
_________
forest
Science 3GCh 1b
The type of forest growing in a hot rainy area is a _______ ____ forest
tropical rain forest
Science 3GCh 1b
A pond is an ______ of living and nonliving things that
affect one another.
ecosystem
Science 3GCh 1b
All frogs living in a pond make up a __________
population
Science 3GCh 1b
Everything around a plant or an animal is its _________
environment
Science 3GCh 1b
The edge of a pond is a good ________ for cattails.
habitat
Science 3GCh 1b
All the populations in an ecosystem form a _________
community
Science 3GCh 1b
A forest of tall trees growing where there is a lot of rain
and the weather is NOT very cold or hot is a ______ forest
coastal forestThese forests are most like a tropical rain
forest, except that it is usually found near the coast, where the weather is more mild.
Science 3GCh 1b
A forest of trees that loose and grow new leaves each
year is a _______ forest
deciduous forestThese forests are found in the northeastern
portion of the United States. Plants and animals which live there, must be able to survive hot summers and cold winters.
Science 3GCh 1b
More types of living things live in ___________ than anywhere else on Earth
tropical rain forests
Science 3GCh 1b
Name the layers of a tropical rain forest
canopy (top)
under story (middle)
forest floor (bottom)
Science 3GCh 1b
Which would probably not be found in a deciduous forest.Moss, cactus, shrubs, ferns
CactusSince the cactus stem stores lots of water, freeing temperatures will freeze
and kill the entire plant.
Science 3GCh 1b
Oceans and seas contain ____ water.
salt waterSalt water surrounds the continents.
Just for fun: By some estimates, if the salt in the ocean could be removed and spread evenly over the Earth’s land surface it would form a layer more than 500 feet (166 m) thick, about the height of a 40-story office
building.
Science 3GCh 1b
Lakes, rivers, ponds and streams usually contain
_____ water.
fresh waterFresh water is found inland. Most fresh water comes from from rain and melted snow, which contains
few minerals.
Science 3GCh 1b
Why are oceans salt water and lakes fresh water?
Fresh water does have a very small amount of salt in it, but not enough to taste salty.
Salt is a mineral found in rock. Rain and snow break down the rock and carries the salt down rivers and streams to lakes, ponds and oceans. Since oceans exist longer than lakes, they have gathered much
more salt, over time.
Science 3GCh 1b
How much of the Earth’s surface is covered in water?
2/3
water
land
Science 3GCh 1b
What is the Earth’s largest ecosystem?
Oceans
Oceans cover most of the world.
Science 3GCh 1b
Can an ecosystem survive after a fire?
Yes. Seeds that are protected underground can form new
plants which can later provide habitats for returning animals.
Science 3GCh 1b
Why are conifers shaped like triangles and have needles
instead of leaves?
The triangle shape causes snow to slide down the tree. The needles are narrow so snow may fall through the
tree.
Science 3GCh 1b
Why is it unusual to find a cactus growing in a coastal
forest?
Cactus prefer hot dry climates.
Science 3GCh 1b
What is the function of the spiny leaves of a cactus?
to protect it from predators
Science 3GCh 1b
Why do cactus have long shallow roots?
So they can take up the little bit of rain in a desert climate, that will not have a chance to soak
deep into the ground.
Science 3GCh 1b
What is the function of the thick stem of a cactus?
to store water