Download Origin of Seeds

Origin of Seeds
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Student Instruction 1
Before you begin reading the ‘Origin of Seeds’
notes, make an inside fold in your science
notebook and write the title ‘Origin of Seeds’ .
Make sure you update your Table of Contents
and page numbers. Now copy the Objective and
Essential Question. Be sure to complete all of
the Student Instructions, when prompted, in
your notebook.
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Origin of Seeds
Objective:
After hands on exploration and
analysis, students will classify, and
document the characteristics of
various seeds using scientific notation
by the end of the lesson.
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Origin of Seeds
Essential Question:
What do you know
about seeds?
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Seeds
Seeds come in many different
sizes. Some are tiny and some
are large and heavy. Whatever
the size or shape, all seeds can
become new plants. A seed
grows into the type of plant it
comes from. It starts inside a
flower. A fruit often grows
around it to protect it.
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Germination
When a seed starts to grow, it is called
germination. First, a tiny root breaks out of
the seed. The root grows down into the soil.
It takes in the water and nutrients that the
new plant needs to grow. Next, a shoot or
stem grows out of the seed. It grows up,
towards the light. Soon, leaves will grow on
the stem. The seed is now a plant.
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Parts of a Seed
A seed has 3 main
parts. They are
the embryo, seed
coat, and the
cotyledon.
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The Seed Embryo
The embryo is the
part of the seed
that grows into a
plant. It includes
the root, stem, and
leaves.
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Student Instruction 2
Draw an illustration (on a separate ½ piece of
unlined paper), of the main parts of a seed. Be
sure to include captions of the relevant parts
(see slide 7).
Student Instruction 3
Draw an illustration (on a separate ½ piece of
unlined paper), of the seed embryo. Be sure to
include captions of the relevant parts (see
slide 8).
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The Seed Coat
The seed coat is the
though outer shell of the
seed. It protects the seed
from injury and keeps it
from drying out. The seed
coat comes off as the seed
begins to germinate.
Seed coat
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Cotyledon
The cotyledon
(cot·y·le·don) is where
the food is stored inside
the seed. Seeds can have
one or two cotyledons. A
seed with one cotyledon is
called a monocot and a
seed with two cotyledons
is called a dicot.
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Seed Disbursement
Plants rely on a variety of natures
distribution systems to scatter their
seeds. Gravity is one way seeds begin
the germination process. They fall to
the ground near the plant. Seeds are
also carried by wind, water, insects
and animals to their new growing
place.
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Student Instruction 4
Copy and ‘Kid Speak’ the Origin of a Seed
notes. Make sure you update your Table of
Contents and page numbers. Make sure you
leave enough space to attach the 2
illustrations from Student Instruction 2 & 3.
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Student Instruction 5
After completing Structures of Life Student
Investigation 1 the Origin of a Seed, complete
Student worksheet No. 2 Comparing Seeds
and add it to your science notebook. Be sure
to update your Table of Contents and page
numbers.
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References
• Structure of Life, Delta Education
• http://www.bing.com/images/search
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