Interactive Video Script Template
Lesson
Objective
Course
Semester
Unit
Lesson
Science 7
Semester B
1
8
Students will compare various basic sexual reproductive processes
(e.g, pollination, fertilization).
CLIP A
Introduction – 45 to 60 seconds
Visual
Audio
<image>
http://pixabay.com/en/family-kids-parentshappy-people-557122/
When you look at the parents and children
in a family, what do you notice? Do you
notice that the children look similar to, but
not exactly, like the parents?
<image>
http://pixabay.com/en/koala-animalsmammals-australian-61189/
Similarly, you may have you noticed that
offspring of animals are similar to, but not
identical to, their parents!
<image>
http://pixabay.com/en/bouquet-gerberaranunkeln-plant-670312/
Have you ever thought of plants as having
parents? Probably not… but there are
male and female parts of plants, and they
produce unique seeds that lead to
genetically different offspring.
<image>
http://pixabay.com/en/cats-animals-petsdomestic-mommy-87278/
Offspring of plants and animals are similar
to, but not exactly like their parents or
each other because offspring are
produced in the process of sexual
reproduction.
<image-place both images side by side>
In sexual reproduction, two parents
contribute genetic information that
produces unique offspring.
http://pixabay.com/en/sperium-cum-spermdark-winner-326157/
http://pixabay.com/en/stem-cell-sphere163711/
<image>
http://pixabay.com/en/flower-nature-plantspring-macro-447867/
Question for Clip A
Stem: Which of the following organisms
can reproduce using sexual reproduction?
Answers for Question A
A. Bacteria
B. Fungi
C. Plants
D. Yeast
Correct Response  C
Correct – Go to Clip B
Incorrect – Go to Clip E
There are many different organisms that
reproduce by sexual reproduction, and the
processes they use differ. For example,
plants use a different process than
animals.
CLIP B
Build on Introduction – 25 to 35 seconds
<image>
http://pixabay.com/en/family-kids-happypeople-mother-521551/
Organisms use the processes of sexual
reproduction to produce genetically
unique individuals.
<image crop as indicated>
In this process, two special cells called
gametes join together to form the new
individual.
http://commons.wikimedia.org/wiki/File:Spe
rm-egg.jpg
<image>
http://pixabay.com/en/fertilized-egg-liveemergence-267976/
In animals and plants, the gametes from a
male and female organism join together
and make one single cell, called the
zygote. The zygote then grows into a new
organism.
<image>
http://commons.wikimedia.org/wiki/File:PS
Because each gamete contributes one
half the genetic material, no two offspring
M_V84_D010_The_mechanism_of_heredit
y_fig1.jpg
are identical. This causes variation in the
population and increases the chances of
survival in the event of diseases.
Question for Clip B
Stem: In sexual reproduction, what two
cells join together to form the new
individual?
Answers for Question B
A. Cells from the mother
B. Cells from the father
C. Zygotes
D. Gametes
Correct Response  D
Correct – Go to Clip C
Incorrect – Go to Clip F
CLIP C
Build on Clip B – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/bee-in-the-approachbee-apis-pollen-209145/
Pollination is a process in the sexual
reproductive process of flowering plants. It
results in seeds that can grow a new
plant.
<image>
http://pixabay.com/en/poppy-poppy-flowermacro-close-100251/
Flowers are structures of the plant that
can contain all the specialized parts that
the plant needs for sexual reproduction.
<image>
http://commons.wikimedia.org/wiki/File:Mat
ure_flower_diagram.svg
Inside the flower, the male gametes are
found in the anthers and the female
gametes are found in the ovules.
<image>
http://pixabay.com/en/bee-pollen-beepollen-flower-plant-471893/
Wind, or animals like insects and birds,
pick up the male gametes in the form of
pollen and carry it to the female parts of
other flowers, which are called the stigma.
Question for Clip C
Stem: Where are the male gametes of a
flower found?
Answers for Question C
A. Anthers
B. Ovules
C. Stigma
D. Leaves
Correct Response  A
Correct – Go to Clip D
Incorrect – Go to Clip G
CLIP D
Build on Clip C – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/fertilized-egg-liveemergence-267976/
Fertilization is the step of sexual
reproduction in which the male and female
gametes join to form a zygote.
<image>
http://pixabay.com/en/monkey-animalparent-child-zoo-67029/
Fertilization is the first step shared in
common by all organisms that use sexual
reproduction.
<image>
http://pixabay.com/en/hummingbird-hawkmoth-butterfly-542500/
In the plant, wind or animals like birds
carry pollen from anthers to stigma. Here,
the male gametes meet the female
gametes and their chromosomes join to
form a single cell, or zygote.
<image>
http://pixabay.com/en/medecine-sciencediagram-biology-40817/
In humans and other animals, the male
sex cell called the sperm and the female
sex cell called the egg meet and their
chromosomes join to form a single cell,
also called a zygote.
Question for Clip D
Stem: In humans and other animals, what
is the male sex cell called?
Answers for Question D
A. Egg
B. Anther
C. Sperm
D. Stigma
Correct Response  C
Correct - Success Alert
Incorrect – Go to Clip H
CLIP E
Remediation for Clip A – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/green-monkeysmonkey-112275/
Offspring of animals often look similar to
their parents, but they are not identical.
<image>
http://pixabay.com/en/tulips-tulpenblueteflowers-47399/
Even plants produce offspring that are
similar to, but not exactly like, themselves.
<image>
Plants and animals reproduce by methods
of sexual reproduction.
http://pixabay.com/en/baby-child-newbornarms-499976/
<image>
http://pixabay.com/en/elephant-africaokavango-delta-55255/
In the process of sexual reproduction, two
parents contribute their genetic
information to produce offspring that are
unique.
Question for Clip E
Stem: What organism does NOT
reproduce using sexual reproduction
processes?
Answers for Question E
A. Plants
B. Animals
C. Humans
D. Bacteria
Correct Response  D
Correct – Go to Clip B
Incorrect – Go to Clip F
CLIP F
Remediation for Clip B – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/family-fatherchildren-dad-557078/
Genetically unique individuals are
produced as a result of the processes of
sexual reproduction.
<image>
During sexual reproduction, the new
individual is formed when two sex cells
called gametes join together.
http://pixabay.com/en/medecine-sciencediagram-biology-40817/
<image>
http://commons.wikimedia.org/wiki/File:PS
M_V84_D532_Facts_and_factors_of_deve
lopment_fig6-7.jpg
Gametes from both male and female
organisms join together to form a single
cell called a zygote. The zygote grows into
a new organism.
<image, crop as indicated>
http://commons.wikimedia.org/wiki/File:Mei
osis_Overview.svg
Question for Clip F
One half of the new organism’s genetic
material comes from each gamete. This is
how genetic variation is introduced and
why sexual reproduction is advantageous.
Stem: Why are offspring produced from
sexual reproduction genetically unique?
Answers for Question F
A. They are clones of parents
B. ½ of the genetic material comes from
each parent
C. Genetic material comes from the mother
only
D. Genetic material comes from the father
only
Correct Response  B
Correct – Go to Clip C
Incorrect – Intervention Alert – then Clip B
CLIP G
Remediation for Clip C – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/gonepteryx-rhamnibutterfly-240732/
Flowering plants use pollination as an
important step in the process of sexual
reproduction to produce a new plant.
<image>
http://pixabay.com/en/amaryllis-macroflower-close-621492/
The flowers of the plant are the structures
that contain specialized parts of the plant
needed for sexual reproduction.
<image>
http://pixabay.com/en/yellow-red-daylilyhemerocallis-fulva-167290/
The male gametes are found in the
anthers of the flower and the female
gametes are found in the ovules.
<image>
http://pixabay.com/en/bee-bees-insectflower-pollination-374342/
The gametes, in the form of pollen, are
carried by the wind or animals like insects
or birds, to the stigma of other flowers.
Question for Clip G
Stem: Where are the female gametes of
flowers found?
Answers for Question G
A. Anthers
B. Stems
C. Pollen
D. Ovules
Correct Response  D
Correct – Go to Clip D
Incorrect – Go to Clip F
CLIP H
Remediation for Clip D – 25 to 35 seconds
Visual
Audio
<image>
http://pixabay.com/en/fertilized-egg-liveemergence-267976/
In fertilization, male and female gametes
join to form a single cell called a zygote.
<image>
http://pixabay.com/en/little-pig-litter-wildboars-piglet-266757/
Fertilization is a step of sexual
reproduction that is common among all
organisms that use sexual reproduction.
<image>
http://pixabay.com/en/forget-me-nothoverfly-fly-flower-257176/
In a plant, the pollen is carried from
anthers to stigma by wind or animals like
insects. When the male gametes meet the
female gametes, their chromosomes join
to form the zygote.
<image>
http://pixabay.com/en/sperium-cum-spermdark-winner-326157/
The male sex cell of humans and other
animals is called a sperm. It joins with the
female sex cell called the egg to form a
zygote.
Question for Clip H
Stem: What is the name of the single cell
that is formed when male and female
gametes join?
Answers for Question H
A. Egg
B. Sperm
C. Zygote
D. Stigma
Correct Response  C
Correct – Success Alert
Incorrect – Go to Clip G