Transcript 4/20 & 4/21 - 7th Grade Agenda

11/21 & 11/22 - 7th Grade Agenda
Learning Objective: Learn about nonvascular
& vascular plants
Collect HW: Reading & Notetaking p.175 – 178
Pass out graded HW, Test & Grade Printout.
Video: Science Fair
Video: Test Your Brain
Textbook Reading 371 - 374
HW: Reading & Notetaking p.179 – 182
HW: Signed Grade Printout
Reminder HW: Science Fair Topic due 12/3 &
12/4 (10 Points)
Reflection
• Prompt: What are two differences between
nonvascular and vascular plants? (write in
complete sentences)
Why does the lemon looks
yellow and leaves look green?
• Because
lemon
reflects
yellow light
• Plant
leaves
reflect
green light.
Which color of light is absorbed
by chlorophyll?
• Chlorophyll absorb
blue and red light
Why do leaves turn red and
yellow in the autumn?
• Chlorophyll masks the
color of most accessory
pigments during most of
the year
• In cool temperatures,
chlorophyll breaks down
and the colors of
accessory pigments can
be seen.
What are the characteristics of
Nonvascular Plants?
• Mosses, Liverworts,
Hornworts
• Low growing
• Can pass materials
only from one cell to
the next
• Cell walls provide
support
• They get water
directly from their
surroundings.
Gametophyte & Sporophyte
Moss Reproduction Video
What is a seed plant?
• All have vascular tissues
• Most plants are seed
plants (10 to 1)
• Seed plants use seeds to
reproduce
• All seed plants have
roots, leaves and stems
• In plants what you see
are the sporophyte stage.
Parts of Seeds
• Embryo
• Stored Food
• Seed Coat.
What do seeds need to develop
into a new plant?
• Light
• Water
• Nutrients.
How can seeds be scattered?
•
•
•
•
Animals
Water
Wind
Shooting out
of plant.
What is Germination?
• Early Growth Stage of
Embryo
What role do leaves play in
plant?
• Leaves capture the
sun’s energy and
carry out the food
making process of
photosynthesis
Structure of leaf
What are the functions of stems?
•
•
•
Carry substances
between the leaves
and roots
Support the plant
and hold up the
leaves
Store food.
What are the functions of roots?
• Anchor plants
in the ground
• Absorb water
and nutrients
from the soil
• Store food.
Science Fair Project (85 Points)
• Science Fair Topic & Hypothesis due 12/3
& 12/4
• Final Project due 2/25 & 2/26
• Need to come up with a question and
hypothesis.
• Next, you need to conduct an experiment
and publish results.
Nature of Inquiry
Posing a q________
uestions
municate
Com__________
Forming a
Hy________
pothesis
Design an
Ex________
periments
onclusions
Draw C__________
Collect and
erprete data
Int_________
Scientific Inquiry
• Scientific Inquiry
refers to the diverse
ways in which
scientists
inve_______
stigate the
natural world and
pose expl__________
anations
based on the
evidence they gather.
1st Step: Posing Questions
• Scientific Inquiry often
begins with a problem
or question about an
obse_________.
rvation
2nd Step: Hypothesis
• Hypothesis is a
possible expl_______
anations
for a set of
observation or answer
to a scientific question
3rd Step: Design an Experiment
• An experiment in which
only one var______
iable is
manipulated at a time is
called a controlled
experiment
• Why is only one variable
manipulated?
4th Step: Collecting and
Interpreting Data
• Data are the facts,
figures, and other
dence gathered
evi_______
through observations.
• It is usually a data or
a chart
5th Step: Drawing Conclusions
• A conclusion is a
summary of what you
rned from
have lea_____
an experiment.
6th Step: Communicating
• Communicating is
sharing of ideas and
experimental findings
with others through
writing and sp______.
eaking