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

12/3 - 7th Grade Agenda
Learning Objective: Learn about nonvascular
& vascular plants
Collect HW: Reading & Notetaking p.175 - 178
Collect HW: Signed grade printout
Video: Test your brain
Textbook Reading 371 - 374
HW: Reading & Notetaking p.179 – 182
Reminder: Bring a flower on 12/4 & 12/5 for
flower dissection lab. ( 5 Points)
Reminder HW: Science Fair Topic due 12/13 &
12/14 (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
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.
Reminder Homework for 12/4 &
12/5
 HW: Bring a large flower in a
plastic bag w/ your name on it.
that we will observe in class:
 Best to bring a Lilly
 Next best is to bring a large
flower where you can see the
pistil and stamen.
 You can go to a florist and ask
them of any old flower that
they are going to throw away
 5 Points
Science Fair Project (85 Points)
• Science Fair Topic & Hypothesis due
12/13 & 12/14
• Final Project due 2/23 & 2/24
• Need to come up with a question and
hypothesis.
• Next, you need to conduct an experiment
and publish results.