1. 12/ th Grade Agenda
Learning Objective: Learn about Science Fair Project
Collect HW: Reading & Notetaking p
Change Jobs
Textbook Reading
HW: Reading & Note taking p.175 – 177
Reminder: Chap 4 Test 12/15 & 12/16
Reminder: Science Fair Proposal due 12/15 & 12/16

2. Reflection
Prompt: Write 2 reasons why plants are important to us. What would happen if there were no plants on the planet?

3. What is a plant? Autotrophs - Photosynthesis
Cell Wall (Made of cellulose, a chemical that makes the walls rigid)
Multicellular.

4. Origin of Plants – When did plants first appear?
Oldest plant: 400 million years old
Ancient Green Algae were ancestors of today’s plants.

5. 5 things that plants must do to survive on land.
Obtaining water and other materials
Retaining Water
Transporting Materials
Support
Reproduction

6. Living on Land – How do plants retain water?
Cuticle: Waxy waterproof layer covers the leaves of most plant and helps to retain water.

7. Transport and Support – How can plants grow so tall?
Vascular tissue: Internal tube like structures through which water and food move inside the plant

8. Classification of Plants
Nonvascular Plant: Grows low to the ground
Vascular Plant: Grows tall

9. 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.

10. Complex Life Cycle Sporophyte Stage: Plant produce spores
Gametophyte Stage: The plant produce two kinds of sex cells or gametes (sperm & egg cells)

11. Photosynthesis Carbon dioxide + water sugar + oxygen
Excess food made by plants are stored in the roots, stems or leaves

12. Science Fair Project (85 Points)

13. 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

14. 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

15. 1st Step: Posing Questions
Scientific Inquiry often begins with a problem or question about an obse_________.
rvation

16. 2nd Step: Hypothesis anations
Hypothesis is a possible expl_______ for a set of observation or answer to a scientific question
anations

17. 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

18. 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

19. 5th Step: Drawing Conclusions
A conclusion is a summary of what you have lea_____ from an experiment.
rned

20. 6th Step: Communicating
Communicating is sharing of ideas and experimental findings with others through writing and sp______.
eaking

21. Reflection
Prompt: Examine the Science Fair Boards that you see around the room and write 3 Hypothesis that you like. (write in complete sentences)