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Zero Hunger, Fifth Grade Science Projects (24 results)

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Top Crops: Finding Hidden Grasses and Beans in Processed Foods
Science Fair Project Idea
Scientific Method
It's the bottom of the ninth, and you've spent a great afternoon at the ball game with a hotdog, a soda, and an ice cream in hand, but I'll bet you're not thinking about how many crops went into those classic baseball snacks. Sure, the bun contains wheat, but did you know that the hotdog might contain wheat, too? And soybeans may have been used to give that ice cream its perfectly smooth texture, while corn was likely used to sweeten the entire meal! Crops can be changed and added to processed… Read more
Dust Busters: How No-Plow Farmers Try to Save Our Soil
Science Fair Project Idea
Scientific Method
Do you have any great-grandparents who lived through the Great Depression in the United States during the 1930's? If so, they might have stories to tell about terrible dust storms that blackened the skies, from the Midwest to the east coast. Severe drought was a factor in causing this "Dust Bowl" era, but decades of poor farming practices contributed to it, too. In this environmental science fair project, you'll learn about farming methods that help keep dirt from drying up into dust, and help… Read more
Recycling Greywater: Can Plants Tolerate It?
Science Fair Project Idea
Scientific Method
One way to conserve water is to find safe ways to use it more than once. Here is a project to test whether greywater (water that has been used for washing or bathing) can be used for watering ornamental plants. Read more
Size vs. Depth: The Relationship Between the Size of a Seed and Its Ideal Planting Depth
Science Fair Project Idea
Scientific Method
Plants have evolved many clever mechanisms to ensure that their seeds will wait for appropriate conditions before sprouting. Some may only germinate after a fire, others only after going through a cold spell. This project explores one important variable among many that determine the ideal conditions for seed germination. Read more
Radiant Radish Seeds
Science Fair Project Idea
Scientific Method
We all know that plants need sunlight and water to grow big and tall. But did you know that inside seeds are baby plants, and that the fragile baby plant inside the seed needs to be protected? If you've ever had a sunburn, you also know that the sun gives off harmful radiation and heat. How much radiation and heat can a seed handle? Find out using some radish seeds, an oven, and your microwave! Read more
Get Rid of Those Leftovers: How Much Organic Waste Can Composting Worms Eat?
Science Fair Project Idea
Scientific Method
What happens to the food leftovers in your home? Do they go in the trash? Down the garbage disposal? Or get gobbled up by the family dog? Food leftovers are a type of organic waste, a waste that comes from a plant or animal. Organic waste—like table scraps, agricultural waste, and human and animal waste—is biodegradable. This means, it can be chemically broken down by bacteria, fungi, or other living organisms into very small parts. Figure 1. This… Read more
How Do Food Preservatives Affect the Growth of Microorganisms?
Science Fair Project Idea
Scientific Method
This project uses liquid cultures and agar plates to investigate the effects of different concentrations of a food preservative on microbial growth. Read more
What is the Most Effective Treatment for Whitefly Infestations on Plants?
Science Fair Project Idea
Scientific Method
Whiteflies are a group of closely related insect species whose larvae live on plants. Like aphids, they suck nutrients from the plant's circulatory system. What is the most effective method for fighting a whitefly infestation in your garden? This project has some ideas for you to try. Read more
Can Copper Foil Snails?
Science Fair Project Idea
Scientific Method
If you have a garden, you probably know about snails (or their shell-less relatives, slugs). You may even be looking for a good way to keep them from getting into your garden and eating up the results of all your hard work. In this science project, you will take a scientific look at one method of discouraging this garden pest. Read more
Fruit Ripening
Science Fair Project Idea
Scientific Method
Fruit is a strategy some plants use to attract animals to disperse seeds. The animals eat the fruit and disperse the seeds through the digestive system. To attract animals, fruit needs to ripen and develop an odor that acts as an attractant. How much more successful are ripe fruits at attracting animals? Try setting out an over and under ripe piece of fruit, and compare how many many insects are attracted to each fruit. How does ripening occur? You can do an experiment using a very ripe… Read more
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