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12/15 & 12/16- 7th Grade Agenda Learning Objective: Learn about nonvascular & vascular plants Collect HW: Reading & Notetaking p.175 – 177 Chap 4 Test Science Fair Proposal Due Textbook Reading HW: Reading & Notetaking p.178 – 179 Reminder HW: Science Background due 1/21 & 1/22 (10 Points)
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Reflection Prompt: What are two differences between nonvascular and vascular plants? (write in complete sentences)
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Why does the lemon looks yellow and leaves look green?
Because lemon reflects yellow light Plant leaves reflect green light.
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Which color of light is absorbed by chlorophyll?
Chlorophyll absorb blue and red light
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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.
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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.
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Gametophyte & Sporophyte
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Moss Reproduction Video
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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.
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Parts of Seeds Embryo Stored Food Seed Coat.
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What do seeds need to develop into a new plant?
Light Water Nutrients.
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How can seeds be scattered?
Animals Water Wind Shooting out of plant.
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What is Germination? Early Growth Stage of Embryo
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What role do leaves play in plant?
Leaves capture the sun’s energy and carry out the food making process of photosynthesis
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Structure of leaf
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What are the functions of stems?
Carry substances between the leaves and roots Support the plant and hold up the leaves Store food.
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What are the functions of roots?
Anchor plants in the ground Absorb water and nutrients from the soil Store food.
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Science Fair Project (85 Points)
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Reflection Prompt: Copy first 5 sentences of a Science Fair Background.
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Nature of Inquiry uestions municate pothesis periments onclusions
Posing a q________ uestions Forming a Hy________ municate Com__________ pothesis Design an Ex________ periments Collect and Int_________ data onclusions Draw C__________ erprete
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Scientific Inquiry stigate anations
Scientific Inquiry refers to the diverse ways in which scientists inve_______ the natural world and pose expl__________ based on the evidence they gather. stigate anations
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1st Step: Posing Questions
Scientific Inquiry often begins with a problem or question about an obse_________. rvation
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2nd Step: Hypothesis anations
Hypothesis is a possible expl_______ for a set of observation or answer to a scientific question anations
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3rd Step: Design an Experiment
An experiment in which only one var______ is manipulated at a time is called a controlled experiment Why is only one variable manipulated? iable
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4th Step: Collecting and Interpreting Data
Data are the facts, figures, and other evi_______ gathered through observations. It is usually a data or a chart dence
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5th Step: Drawing Conclusions
A conclusion is a summary of what you have lea_____ from an experiment. rned
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6th Step: Communicating
Communicating is sharing of ideas and experimental findings with others through writing and sp______. eaking
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