7th grade science project ideas


Science Fair Project: Does the weight of a pumpkin have any relationship to the number of seeds.

Here is a great Halloween science fair project. You will obtain a number of pumpkins of different sizes and weights and start counting seeds to determine if the weight has any relationship to the number of seeds. This is a good project for younger grades.

It is believed that the word pumpkin originated from the Greek word for "large melon" which is "pepon." Native Americans dried strips of pumpkin and wove them into mats. They also roasted long strips of pumpkin on the open fire and ate them. The origin of pumpkin pie occurred when the colonists sliced off the pumpkin top, removed the seeds, and filled the insides with milk, spices and honey. The pumpkin was then baked in hot ashes.

U.S. pumpkin production in 2006 was valued at $101.3 million.

The top pumpkin production states are Illinois, Ohio, Pennsylvania and California.

According to the University of Illinois, 90 percent of the pumpkins grown in the United States are raised within a 90-mile radius of Peoria, Illinois.

Around 90 to 95% of the processed pumpkins in the United States are grown in Illinois.

Pumpkin seeds can be roasted as a snack.

Pumpkins contain potassium and Vitamin A.

Pumpkins are used for feed for animals.

Pumpkin flowers are edible.

Pumpkins are used to make soups, pies and breads.

The largest pumpkin pie ever made was over five feet in diameter and weighed over 350 pounds. It used 80 pounds of cooked pumpkin, 36 pounds of sugar, 12 dozen eggs and took six hours to bake.

In early colonial times, pumpkins were used as an ingredient for the crust of pies, not the filling. Pumpkins were once recommended for removing freckles and curing snake bites.

Pumpkins range in size from less than a pound to over 1,000 pounds.

The largest pumpkin ever grown weighed 1,140 pounds.

Pumpkins are 90 percent water.

Pumpkins are fruit.

Eighty percent of the pumpkin supply in the United States is available in October.

Native Americans used pumpkin seeds for food and medicine.

time to prove that your hypothesis is correct (or not). It's time to DO the experiment!

Suggested materials…

1. Obtain at least four different pumpkins of different sizes ranging from small to large. You may use as many pumpkins as you wish for this project, but at least four should be a minimum.

2. Scale of pretty good capacity to weigh each pumpkin.

3. Large knife or saw to cut the pumpkins.

4. Notebook and pen to record results

Suggested procedures…

1. Identify each pumpkin in your project as 1, 2, 3, etc.

2. Weigh each pumpkin and log in the weight alongside the pumpkin number.

3. Cut or saw each pumpkin into four quarters. Parent should assist or perform this procedure.

4. Count the number of seeds in one-quarter of a pumpkin and multiply by four to get the approximate number of seeds in the entire pumpkin.

5. Do the same as above for each of the pumpkins in your project.

6. Make certain that you keep accurate records.

7. Divide the weight of each pumpkin in pounds by the number of seeds to determine how many seeds per pound.

8. Make certain that you make your hypothesis which should include whether or not you believe that the number of seeds per pound will be greater or larger as the weight of the pumpkin increases.

9. Take photos of everything you do. The judges like photos in the display.

CLICK HERE for complete details on this project.



seventh grade science fair project ideas


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