THE MARS SOCIETY. Prelude to Mars The Mars Society RMMS How Can I Get Involved?
Mission to Mars Tomatosphere What is Tomatosphere? Click the tomato to link to the website!
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W eek#32, 2012-13 Today C opy first, then respond. SC IEN C E JO URNAL, W EEK #32, M onday, M ay 6 ESSENTIAL Q U ESTIO N EQ :H ow can you startgrow th ofdorm anttom ato seeds? M y A nsw er (C lass work AND homework) : H om ework ► H om ew ork for Friday:V ocabulary. H om ew ork for tom orrow :Proofread EQ answ er. A nnouncem ents, Q uestions???, R eview A , Q , R Students’O bjective O bj. 6.L.1 (plants)and 6.L.2 (ecology) Quotation to relate to science or life “Them an who m akesno m istakesdoesnotusuallym ake anything.”— Edward Phelps Teacher presents. V ocabulary instructions(D efine and illustrate.) Tom atosphere planting instructions(pow erpointand oral) Studentsdo. C opy vocabulary term sfor the w eek or take the handout provided. W rite noteson Tom atosphere planting Plantthe seeds(Follow instructions!)
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Transcript of Mission to Mars Tomatosphere What is Tomatosphere? Click the tomato to link to the website!
Week#32, 2012-13 Today
C
opy
firs
t, t
hen
resp
ond.
SCIENCE JOURNAL, WEEK #32, Monday, May 6
ESSENTIAL QUESTION
EQ: How can you start growth of dormant tomato seeds? My Answer(Class work AND homework):
Homework► Homework for Friday: Vocabulary. Homework for tomorrow: Proofread EQ answer.
Announcements, Questions???, Review A, Q, R Students’ Objective Obj. 6.L.1 (plants)and 6.L.2 (ecology)
Quotation to relate to science or life
“The man who makes no mistakes does not usually make anything.”—Edward Phelps
Teacher presents. Vocabulary instructions (Define and illustrate.) Tomatosphere planting instructions (powerpoint and oral)
Students do.
Copy vocabulary terms for the week or take the handout provided. Write notes on Tomatosphere planting Plant the seeds (Follow instructions!)
Mission to Mars
Tomatosphere
Let’s get started on your paper. Write your heading
Let’s title this. Notes – Tomatosphere
1.
I’ll make anythingyou need to copy on your paper in red text,like I did with the title up there. Got it?
Let’s get started here.
Copy the questions. You will answer them while viewing the slides.
Notes – Tomatosphere
1. What have our seeds been exposed to?
2. Our OBJECTIVE is to compare what kind of rate?
3. We are comparing this rate for what two groups of seeds?
4. What are the 4 life requirements that we hope to supply?
5. What is successful germination for one of our plants?
6. You will use a toothpick to push down your seed to what depth?
A trip to Mars?• Our seeds have been exposed to:
• extremely cold temperature (-90oC), and• very low pressure (almost a vacuum).
Why? Because these conditions are likely to occur during a trip to Mars.
• HOW WOULD THIS AFFECT TOMATO PLANTS THAT WE TAKE TO MARS?
Objective• The Tomatosphere project objective is
– to compare the germination rate of tomato seeds – and the growth of tomato plants
• What are we comparing?– Contol group of seeds (Earth-bound)– to– Experimental group (Space treated)
Why?• To answer the question of• how we can supply people who go to Mars
with life requirements, which are– food, – water, – oxygen – the need to get rid of carbon dioxide
exhaled.
How?• You will observe the tomatoes during
their seedling germination and growth. • You will record your observations and
send the data to NASA.
What is Germination?• A process by which a seed changes into a
seedling with leaves, stem and roots.• For purposes of this experiment, a seed can be
considered to have successfully germinated when two (2) seed leaves (cotyledons) can be seen.
• Following is a picture.
Germination—two leaves.Note that two plants are shown here. (One is
circled.)
Conditions Necessary for Germination
1. Moisture (the stimulus that starts germination)
2. Oxygen: All green plants need oxygen to "breathe" or respire, just like humans.
3. Warmth: – Minimum: Tomato plants will not germinate at temperatures below
10°C.– Optimum: Tomato plants germinate best between 17°C and 20°C.– Maximum: Tomato plants will not germinate at temperatures which
exceed 35°C.
This is an EQ Answer!
Planting Medium—Peat pellets
pellets
pellet after soaking in water(This one has a plant growing in it already.)
Monitor the germination conditions
• Seeds must be kept moist, but not wet. • Germinating seeds prefer a moderately warm
uniform temperature. • Ensure that all seeds are germinated under identical
conditions.• Avoid direct sunlight.
Observe and record• Detailed and carefully recorded observations
are essential to completing a successful experiment. Observations will be recorded daily (except weekends) by a couple of our students.
Class ObservationsYour recording sheet will be similar to this.
Day Number Time Temperature Observations/Notes
0 9:50am 20 C Planted seeds. Peat pellets were watered 20 mins before planting.
Class Observation Charts
What do I do
today?
It is easy to plant your seeds.• You will receive
– a cup labeled G or W with moist peat pellet– a seed– a toothpick
• Do this.– Use fingers to place the seed on the peat pellet– Use the toothpick to push down the seed to a depth
of about 0.7cm (the WIDTH of a pencil)
• You will repeat this when you receive another cup and seed.
• Any questions?
