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21 Cards in this Set

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TRUE/FALSE All seeds are about the same size.
FALSE
Seeds come in many different sizes and shapes.
What is the largest seed in the world?
A fifty-pound coconut
What is the tiniest seed in the world?
African witchweed plant
Each seed is 1/1000 inch long.
TRUE/FALSE The bigger the plant, the bigger the seed.
FALSE
A Redwood tree has a seed that is only 1/16 inch long.
All seeds have one thing in common.
Every seed contains a new, _______ ________.
living plant
List the 3 main parts that every seed has.
embryo (new plant)
stored food
seed coat (covering)
What is the purpose of the embryo?
It is the new plant.
What is the purpose of the stored food?
It will nourish the plant until
it is able to make its own food.
What is the purpose of the seed coat?
It protects the embryo until it is
time to sprout or begin to grow.
Name 3 important ways that seeds
move away from their parent plant.
wind
water
animals and people
Why do seeds need to travel away
from their parent plants?
So they can get enough sunlight,
water, and minerals.
Name some common seeds that travel by wind.
dandelion
maple
elm
tumbleweed
Name some common seeds that travel by water.
pussy willow
coconut
red mangrove tree
Name some common seeds that travel by animal.
blackberry
cockleburr
beggar's ticks
flax
What does it mean for a seed to be dormant?
It is alive but not growing.
What does it mean for a seed to germinate?
It sprouts or begins to grow.
Name 3 things that a seed needs to germinate.
water
oxygen
the right temperature
How does water help a seed to germinate?
It softens the seed coat.
What happens to the seed coat
when the seed germinates?
Its job is done so it dies.
When a seed germinates, what is
the first little root called?
the primary root
In which season do most seeds ripen
and get carried away from the parent plant?
fall