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sam unit A science 4th grade
sam unit A science 4th grade
103
Science
4th Grade
10/19/2006

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Term
plants need air, water, energy from ----, and a place to ------
Definition
food, live
Term
green plants are unlike animals because they ---- their own food
Definition
make
Term
the three parts of a plant are the -----, -----, and ------
Definition
leaves, stem, and roots
Term
roots absorb ----- from the soil
Definition
water and minerals
Term
roots keep ----- plants from toppling over and ----- plants from blowing away in the wind
Definition
larger . smaller
Term
some plants use their roots to ----- food
Definition
store
Term
some plants have a single, thick root called a -----, while others have ----- roots that spread out in the soil
Definition
taproots, fibrous
Term
a plant's stem carries water, minerals, and other nutrients to and from the ---- and -----
Definition
roots , leaves
Term
a plant's stem ---- leaves up to the light
Definition
holds
Term
---- ar3e the main food-making part of a plant
Definition
leaves
Term
---- are the main food-making part of a plant
Definition
leaves
Term
---- are the main food-making part of a plant
Definition
leaves
Term
the bundles of tubes that carry food and water are called -----
Definition
veins
Term
the protective layer of a leaf is called the ----- and helps keep the leaf from losing water and drying out
Definition
epidermis
Term
tiny openings called stomata help a plant control how quickly it loses ----
Definition
water
Term
extra water exits a plant through the stomata in a process called -------
Definition
transpiration
Term
because plant cells contain ----- leaves are green
Definition
chlorophyll
Term
plants' food-making process is called ------
Definition
photosynthesis
Term
plant leaves use the energy from sunlight to make food from ---- and -----
Definition
water, carbon dioxide
Term
the end results of photosynthesis are ---- and ----
Definition
sugar , oxygen
Term
during ----- a plant uses oxygen to break apart sugars and release carbon dioxide
Definition
respiration
Term
photosynthesis ----- energy, while respiration ---- energy
Definition
stores, releases
Term
a tree becomes ------ to save its energy for growth in the spring
Definition
dormant
Term
a cactus and an evergreen are alike in that they can live in places with little -----
Definition
water
Term
because a cactus has sharp spiny leaves, that plant does not lose too much ----- and animals are kept from eating it
Definition
water
Term
because an evergreen's leaves have a coating of ----- water loss is reduced
Definition
wax
Term
where is the epidermis of a leaf located
Definition
top and bottom
Term
where in a leaf is chlorophyll located
Definition
middle
Term
where are the stomata of a leaf located
Definition
lower epidermis
Term
which parts of a leaf can you see without using a microscope
Definition
veins
Term
for photosynthesis to occur, what gas must enter a leaf
Definition
carbon dioxide
Term
could photosynthesis occur in a plant outside at night? why or why not?
Definition
no , because it uses energy from the sun
Term
during respiration what gas is given off
Definition
carbon dioxide
Term
how do sugars move to all parts of the plant
Definition
through the veins
Term
when you look at a leaf, you can see the leaf's protective layer, or its -----
Definition
epidermis
Term
the tiny openings on a leaf that control how quickly a plant loses water are known as ------
Definition
stomata
Term
the process in which plants make their own food is called ------
Definition
photosynthesis
Term
when extra water exits the leaf, the process is called -----
Definition
transpiration
Term
the green substance ----- traps energy from sunlight and gives leaves their green color
Definition
chlorophyll
Term
most plants contain threadlike cells called ------- that take in water and minerals from the soil
Definition
root hairs
Term
to use food energy, the plant breaks apart sugars in a process known as -----
Definition
respiration
Term
If you continually removed all the green leaves from a plant, what would happen to the plant? why?
Definition
it would die because it is the main food making part of the plant
Term
when you see a healthy green plant in the sun, what process is the plant probably involved in? why?
Definition
photosynthesis, because it uses light from the sun to make food
Term
plants are unique living things because they make their own food and have special parts to help them do this job. this food-making process is called ------
Definition
photosynthesis
Term
to use the food the plant makes, it breaks down sugars in a process known as ------
Definition
respiration
Term
the food-making process takes place in the plant's -----
Definition
leaves
Term
the plant's ----- extend into the soil and take in some of the materials a plant needs to make its own food
Definition
roots
Term
another part of the plant, the ----- , is responsible for carrying the food, water, and other materials to and from the roots and the leavessd
Definition
stem
Term
an undeveloped plant with stored food that is sealed in protective covering is called a(n)-----
Definition
seed
Term
when a seed sprouts into a new plant, the process is called -----
Definition
germination
Term
all seeds develop the same way by growing from a seed to a(n) ---- to an adult plant
Definition
seedling
Term
some plants, such as a bean plant, go from seed to adult plant in a few ----, while others, such as a peach tree, take several -----
Definition
months, years
Term
most seeds need ---- and ----- to germinate
Definition
water , warm temperatures
Term
in a plant, male sex cells are found in -----
Definition
pollen
Term
pollen is produced by a part of the flower that is known as the -----
Definition
anther
Term
the female sex cells, or the egggs, are in a part of the plant known as the -----
Definition
pistil
Term
the transfer of a pollen grain to the pistil is called -------
Definition
pollination
Term
since plants cannot move from one place to another, they rely on insects, ----, mammals, ---- or ------ to help with pollination
Definition
birds, wind, water
Term
after pollination the female sex cell and the male sex cell join into one cell, a fertilized egg, in the process of
Definition
fertilizaion
Term
the ---- is a structure containing eggs cells
Definition
ovary
Term
the part of the seed that has the beginning of a root, stem, and leaves is the -----
Definition
embryo
Term
if it is too close to a seedling, a parent plant can block ---- and soak up ---- and nutrients that a seedling needs to grow
Definition
sunlight, water
Term
some plants scatter their own seed, but others are carried away by ----, ----, or -----
Definition
water, wind or animals
Term
the purpose of a(n) ----- is to make seeds that grow into new plants
Definition
flower
Term
for a plant's life cycle to continue, a seedling must live long enough to produce ----
Definition
new seeds
Term
while most plants have flowers and produce seeds, some plants have ---- that can grow into a new plant
Definition
spores
Term
moss spores grow into moss plants that have both ---- and ---- branches
Definition
male , female
Term
the fertilized egg of a moss plant grows into a thin stalk with a(n) ---- on top that contains spores
Definition
spore case
Term
See diagram - what is the male part of the plant called that makes pollen
Definition
anther
Term
See diagram - what is the female part of the plant called that makes the egg
Definition
pistil
Term
See diagram - what happen during pollination
Definition
pollen is carried from a flower's anther to its own pistil or to another flower's pistil
Term
See diagram - how are flowers pollinated
Definition
by bees
Term
See diagram - what happens after the ovary grow into an apple
Definition
the fruit decays
Term
See diagram - how does the deer contribute to the life cycle of the flowering plant
Definition
it spreads seeds through its waste
Term
See diagram - why is a circle a good way to represent the life cycle of a flowering plant
Definition
because it shows that each step goes to the next
Term
an undeveloped plant with stored food sealed in a protective covering is called a(n)-----
Definition
seed
Term
the part of the plant that contains the egg cells is known as the -----
Definition
ovary
Term
pollen grain tranfers from an anther to a pistil during the process of -----
Definition
pollination
Term
a seedless plant grows from a(n) -----
Definition
spore
Term
when a seed sprouts into a new plant, the process is called -----
Definition
germination
Term
the joining of the female sex cell with the male sex cell into one cell is called -------
Definition
fertilization
Term
what are two ways plants reproduce
Definition
with itself or other plants
Term
how could a person take part in the process of pollination
Definition
by it rubbing off them onto other plants
Term
why do most plants produce many more seeds than will ever become adult plants
Definition
because not all will survive
Term
flowers were -----by a bee or other insect, wind or water. Next the plant eggs were ------. Then the ----began to grow
Definition
pollinated, fertilized, seedling
Term
the ----- of the plant grew into ---- with seeds inside. The fruit ripened and animals may have eaten some of it. these animals spread the seeds through their -----
Definition
ovary, fruit, waste
Term
the seeds sprouted into a new plant through ---- . then ----- began to grow, far away from the parent plant.
Definition
germination, seeds
Term
remember, though, that some plants have no flowers and do not produce seeds. they reproduce through special cells called ------
Definition
spores
Term
plants release water through the process of -----
Definition
transpiration
Term
in a flower the egg is created in the ------
Definition
ovary
Term
flowers make ----- which can grow into new plants
Definition
seeds
Term
when a male and female sex cell join together, ------ occurs
Definition
fertilization
Term
the green chemical called ---- helps plants perform photosynthesis
Definition
chlorophyll
Term
a plant breaks sugars apart for energy in a process called ------
Definition
respiration
Term
plants lose water through leaf openings called ------
Definition
stomata
Term
a seed sprouts into a new plant in a process called ------
Definition
germination
Term
plants make and store food through the process of -------
Definition
photosynthesis
Term
when a pollen grain meets a pistil, ----- occurs
Definition
pollination
Term
the part of the plant that carries water from the roots to the leaves is the ------
Definition
stem
Term
the leaf's main job is to ------
Definition
make food
Term
name 3 ways that seeds may be carried away from the parent plant
Definition
sticking to an animals fur, blowing in the wind and an animal eating it
Term
to make food, plants need to take in a gas called -----
Definition
carbon dioxide
Term
the job of roots is to ------
Definition
absorb water and nutrients
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