soil+types+1

Plant Investigation __The Problem:__ How does plant growth vary with different types of soil? __Hypothesis:__ We think that the plants will grow different heights in each of the different soils because some are better for the plants than others

__Materials: 4 plastic bags, dirt, sand, water, 4 of the same type of seeds, __ __Variables:__ a. Manipulated: __soil types__ b. Responding: plant height c. Controlled:  Soil amounts, Water amounts, Same type of plant seed, same container to grow it in, same amount of light. Procedure: __ 1. Put a different type of soil in each cup (same amount). 2. Plant one seed in each cup. 3. Water

__ Observations/Logbook: Day 1: Date: sep 28 __No plants were germinated__

__ Day 3: Date: Oct 1 __ Water: The seed in the water has not germinated yet but keeps getting fatter. Sand: The seed has not germinated yet Soil: The seed may have germinated but it has still not come out of the soil. Rocks: The plant in the rocks has fully germinated and has come out of the rocks and is 12.5 centimeters out of the rocks.

Day 5: Date: _Oct 7 _ Water: The seed in the water has still no even germinated but is getting fat. Soil: The plant in the soil has not yet come out of the soil. Sand: The plant in the sand has just come out and is 1cm tall. Rocks: The plant in the rocks is still growing and is 23cm tall.

Day 7: Date: oct10 __ Soil The soil one nothing has happened to it yet Sand: The plant in the sand is now 2cm tall Rocks: the plant in the rocksis now 25 cm long Water:Nothing has happened it just sits there __

__Day 9: Date: oct15

Soil nothing has happened Sand the plant got pulled out by someone Rocks: The plant n the rocks has not grown it is still 25 cm tall__ Water: It still just is sitting there

Day 11: Date: october 20 __The plant in the rocks Is now 27cm The plant in the water nothing has happened The plant in the soil nothing happened And the plant in the sand is 1 cm tall__

__Day 13: Date: oct 28 The plant in the sand got pulled out by someone The plant in the water has molted and is now really squishy The plant in the soil has still not even germinated The plant in the rocks has stopped growing and is 27cm tall We have some pictures of the plants.__

RocksSand Soil Water

Day 15: Date: nov 16 the plant in the rocks has shriveled up and died the rest of the plants were done a while ago


 * Rocks || Sand || Water || Soil || Day ||
 * 12.5 || 0 || 0 || 0 || 3 ||
 * 23 || 1 || 0 || 0 || 5 ||
 * 25 || 2 || 0 || 0 || 7 ||
 * 25 || n/a || 0 || 0 || 9 ||
 * 27 || n/a || 0 || 0 || 11 ||
 * 27 || n/a || 0 || 0 || 13 ||
 * n/a || n/a || n/a || n/a || 15 ||



__(add additional days as necessary) Conclusion:__
 * Write a conclusion based on your findings that fulfills the “qualities of a good conclusion” posted on the bulletin board. **