© 2009 smart technologies ulc. all rights reserved
TRANSCRIPT
© 2009 SMART Technologies ULC. All rights reserved.
Essential ConceptsSoil MatrixSoil Diagram
Then you may complete the anticipation guide on the essential concepts.
Plants need soil to grow.
What else do you know about soil?
Circle Map
Share your ideas withthe class.
more
Soil
Different soils have different colors.
Look at the colors of humus, sand, and clay. What kind of soil has each color?
loam
sand
clay
reveal
Different soils have different textures.
Match each type of soil to its texture.
humus
sand
clay
gritty
smooth
medium
Some soils drain more quickly or more slowly than others.
Which soil drains more quickly? More slowly?
drains quickly
drains slowly
claysand loam
Match the plants to the soil they grow best in.
Different kinds of plants grow best in different kinds of soil.
sand humus
Let's Review!
Soil is...
found on the grounddirtybrownplants need itworms live in ithas rocks and pebbles in it
sand loam
Let's Make Some QUALITATIVE Observations!
Clay Humus
Sand Silt
What does it
feel like?
What does it
look like?
What does it
smell like?
Type of Soil Looks Like: Feels like:
______________ Color: White or tanTexture: Can easily see grains
Rough
______________ Color: Dark brown or blackTexture: Has some clumps, can see some grains
Smooth
______________ Color: RedTexture: Clumps together easily, cannot see individual grains
Very soft and smooth
Use your observations to complete this chart in
your journals.
COMPARE!
End of Tuesday
You're the scientist today!
Get ready to get down and dirty!
Can Soil
Hold Water?
Objective:
Hypothesis:
Materials:
Data:
Let's prepare for our investigation!
To determine how well different soils hold water.
You decide!
Filters, Graduated cylinder, cups, water, sand, humus, clay, calculator
Put your calculations and observations here!
Our Procedures1. Put a coffee filter in an empty cup, and overlap the sides of the filter over the cup sides2. Put 1 ounce of soil inside the coffee filter. 3. Measure 30 mL of water with the graduated cylinder.4. Pour the water over the soil. 5. Measure the water that drains through the filter with the graduated cylinder. 6. Subtract the amount from 30 mL to find out how much water their soil held. 7. Put this amount in a chart on the board created by the teacher. 8. Copy the chart in their journal and fill in the information as groups report to the board. 9. Find the average with a calculator. (Add all the numbers in one column and divide by the number of numbers you added together.) Example: 100+90+80=270, Then 270/3=90. So my average is 90.10. Analyze the results.
Sand Humus Clay
Group One
Group Two
Group Three
Average:
Can Soil Hold Water?
(Remember to subtract the amount of water that drained through the soil from 30 mL to find out how many milliliters your soil held.)
Conclusion:
Reflection Question:
Two geraniums are planted in two different types of soil (humus and clay). Tell how the geraniums will change after two weeks in each soils. Which will have a better chance of survival? Why?
