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1/7 - 7th Grade Agenda Learning Objective: Learn about Science Fair Project Video: Test your Brain Brain-Pop Video: Seedless Plants Collect HW: Reading & Notetaking p Textbook Reading HW: Reading & Note taking p Science Fair Project (85 points) due 3/4
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Reflection Prompt: Write 2 reasons why plants are important to us. What would happen if there were no plants on the planet?
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What is a plant? Autotrophs - Photosynthesis
Cell Wall (Made of cellulose, a chemical that makes the walls rigid) Multicellular.
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Origin of Plants – When did plants first appear?
Oldest plant: 400 million years old Ancient Green Algae were ancestors of today’s plants.
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5 things that plants must do to survive on land.
Obtaining water and other materials Retaining Water Transporting Materials Support Reproduction
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Living on Land – How do plants retain water?
Cuticle: Waxy waterproof layer covers the leaves of most plant and helps to retain water.
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Transport and Support – How can plants grow so tall?
Vascular tissue: Internal tube like structures through which water and food move inside the plant
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Classification of Plants
Nonvascular Plant: Grows low to the ground Vascular Plant: Grows tall
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Reproduction – Do plants produce eggs and sperms?
In plants, Fertilization occurs when sperm cell unite with an egg cell The fertilized egg is called a zygote.
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Complex Life Cycle Sporophyte Stage: Plant produce spores
Gametophyte Stage: The plant produce two kinds of sex cells or gametes (sperm & egg cells)
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Photosynthesis Carbon dioxide + water sugar + oxygen
Excess food made by plants are stored in the roots, stems or leaves
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Science Fair Project (85 Points)
Science Fair Topic & Hypothesis due 1/14 Final Project due 3/4 Need to come up with a question and hypothesis. Next, you need to conduct an experiment and publish results.
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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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