Post on 22-Feb-2016
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Soil, Water, and PlantsScientific Investigation Process
Young Scholars Program – Grade 3
Wheel of Scientific Investigation
Step 1: Make Observations
Sample bags contain:• Rocks/Gravel• Clay• Sand• Topsoil
Record your observations about the soil samples in your response journals.
Use your curiosity and
senses to learn.
Set up your journal to
record your observations for
each sample bag.
Step 2: Ask QuestionsI Wonder if…
Topsoil
Rocks/Gravel Clay Sand
Be prepared to share
some of the your
questions.
•What is that one question we want answered?
•What do we already know about our question?
Where can we find the answers to our question?
Step 3: Learn MoreHow can we find the answers to our questions?
•Rank your soil samples from “least absorbent” to “most absorbent.”
•Now state your hypothesis…”We predict that the order of soil samples from least absorbent to most absorbent will be…
Step 4: Design the Experiment HypothesisConduct an experiment to determine how much water different
types of soil can absorb.
Step 4: Conduct the Experiment StepsRecord the steps of the experiment in your response journal so that you are consistent
with each sample bag. Follow the exact steps for the remaining soil samples.
Place the filter paper over the top of the jar. Make a shallow dent in the middle to hold the soil. Secure with a rubber band.
Fill the dent with some of the soil sample.Carefully measure ¼ cup of water.Slowly pour the water evenly over the soil sample.
Designate one group member to watch the inside of the jar while the water is being poured.
Record observations:• What happens when the
water is poured?• What does the sample
look, feel, and smell like after the water has been poured?
Remove the filter paper and pour the water in the jar into the measuring cup. How much of the ¼ cup of water is left?
Step 4: Conduct the Experiment Record DataRecord observations with great detail.
Soil Samples Rocks & Gravel
Clay Sand Topsoil
What happened when the water was poured?What did the sample look like after the water was poured?What did the sample feel like after the water was poured?What did the sample smell like after the water was poured?
Quarter North America
Asia Europe Australia
Q1 2009 123 34 45 10
Q2 2009 134 35 44 12
Q3 2009 150 45 50 14
Q4 2009 201 55 60 18
Q1 2010 175 44 47 13
Q2 2010 180 48 52 14
Q3 2010 204 55 60 16
Q4 2010 250 62 70 20
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Quarter North America
Asia Europe Australia
Q1 2009 123 34 45 10
Q2 2009 134 35 44 12
Q3 2009 150 45 50 14
Q4 2009 201 55 60 18
Q1 2010 175 44 47 13
Q2 2010 180 48 52 14
Q3 2010 204 55 60 16
Q4 2010 250 62 70 20
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Category 1
Category 2
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4.4
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