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Soil or Sand Biology Emily Wood. Science Fair Project. Do plants grow faster in soil or sand?. Statement of the Problem . I wrote a research paper. Then after typing up the procedure I gathered the materials, I started my project. I monitored the plants for ten days, then collected the data.

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Science fair project

Soil or Sand

Biology

Emily Wood

Science Fair Project


Statement of the problem

Do plants grow faster in soil or sand?

Statement of the Problem


Project overview

I wrote a research paper. Then after typing up the procedure I gathered the materials, I started my project. I monitored the plants for ten days, then collected the data.

Project Overview


Research

  • Potting soil is better to plant flowers in. I gathered the materials, I started my project. I monitored the plants for ten days, then collected the data.

  • Plants need water so that they can grow roots.

  • With out roots the plants would die.

  • There are a few kinds of plants that can grow in soil.

  • Sand doesn’t retain water.

Research


Variables

  • Independent I gathered the materials, I started my project. I monitored the plants for ten days, then collected the data.variable: What the plant is planted in (soil or sand).

  • Dependent variable: How fast many leaves plant grows.

    Definitions

    Independent Variable: The independent variable is what is changed in the experiment.

    Dependant Variable: What happens as a result of the independent variable.

  • Constant variables: Amount of water, amount of sunlight, same temperature, same size jiffy pots, same type of plant, and same amount of seeds.

  • Control group:The plants in soil.

Variables



Materials

1 bag of potting soil retain water.

1 bag of sand

Water

Metric measuring cups

6 styrofoam cups

One metric ruler

A pen

Some pieces of paper

Seeds

Marker.

Materials


Procedure

Step 1: Gather materials. retain water.

Step 2: Label the Styrofoam cups “A1” “A2” “A3” “B1” “B2” and “B3”.

Step 3: Put 110 grams of potting soil into the “A” styrofoam cups.

Step 4: Put 110 grams of sand into the “B” styrofoam cups.

Step 5: Put the styrofoam cups on a table outside, for sunlight access.

Step 6: Put four seeds in each of the cups.

Step 7: Each day come back to water the plants with 2 ounces of water in each cup.

Step 8: Each day come back to record how many leaves are on each plant.

Step 9: After the three weeks are up, analyze and graph the data.

Step 10: Communicate Results.

Procedure


Photos

In cup B2 retain water.

Photos

Day 1

B1

B3

A2

Day 10

B2

A3

A1

A2

B3

B1

A1

A3

B2


Data observations analyzes
Data/Observations ( retain water.Analyzes)


Conclusion

In conclusion, I’ve learned that if you use to much water in the soil it will drown the seeds. I have also learned that if the sand is compact and held together with water, the seeds will sprout.

Conclusion


Possible experimental errors

Possible Experimental Errors


Applications and recommendations

I would start earlier and let the plants grow longer. I would also only use 1 oz of water to water the plants.

Applications and Recommendations


Works cited

"Do Plants Grow Best in Ground Soil or Potting Soil? | Garden Guides." Garden Guides, Your Guide to Everything Gardening. Web. 24 Jan. 2011. http://www.gardenguides.com/127982-plants-grow-ground-soil-potting-soil.html

Hershey, David. "Re: Do Plants Grow Better in Soil or Sand? Why?" MadSciNet: The 24-hour Exploding Laboratory. Web. 24 Jan. 2011. http://www.madsci.org/posts/archives/2000-09/969410800.Bt.r.html

"How Plants Grow." Think Quest. Web. 24 Jan. 2011. http://library.thinkquest.org/3715/root2.html

Personal interview. 25 Jan. 2011.

"Plants Suited To Sandy Soils." Discover Loch Sport, a Gateway to the Gippsland Lakes and Ninety Mile Beach. Web. 24 Jan. 2011. http://www.lochsport.com/environment/plants.html

Royston, Angela. "Many Kinds of Plants." How Plants Grow. Chicago, IL: Heinemann Library, 1999. 4. Print.

"Soils and Fertilizers." Web. 25 Jan. 2011. http://cals.arizona.edu/pubs/garden/mg/soils/index.html

Works Cited


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