Kindergarten Science Experiments (Page 28)

Science Fair Project Idea

Scientific Method

Imagine a wonderful summer day at the beach. You play in the sand, swim in the ocean—and, of course, put a lot of sunscreen on. The sunscreen protects your skin from harmful ultraviolet (UV) radiation. Special ingredients absorb or reflect the UV rays so they do not harm your skin. Different types of sunscreen have different types of ingredients, and some of them can be harmful to the environment—especially if they get into the ocean. In this science project you will put your… Read more

Is It Ripe Yet? Build a Circuit to Detect Ripe Produce

Science Fair Project Idea

Scientific Method

When you go to the supermarket, how do you pick out ripe fruits and vegetables? You might look at their size or color, or feel them for firmness. That might be easy to do when you pick out a half dozen apples, but imagine if you had to examine thousands of apples growing in a field, or strawberries coming down a conveyor belt getting ready for packaging. Suddenly, it is a lot harder to do yourself! What if a machine could pick and sort the produce for you? In this project, you will address part… Read more

Make a Straw Siphon

STEM Activity

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What's an easy way to move liquid from one place to another? A siphon! With just a little effort to get it started, you can then sit back and watch liquid flow from one container to another, as it seemingly defies gravity by going uphill. Try this activity to make your own simple siphon using straws. Read more

Make a "Whirlybird" from Paper

Science Fair Project Idea

Scientific Method

Have you ever seen a maple seed twirling as it falls through the air? In this project you will build something that behaves similarly called a whirlybird. Will your whirlybird be able to stay in the air as you add paper clips as weights? Try this project to find out! Read more

Make Your Drawings Float!

STEM Activity

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Have you ever wished your drawings would come alive and the stick figures or objects on your paper could move around? What sounds impossible actually is not! In this activity, you will make your drawing move around by letting it float on water. What makes this possible is the interesting chemistry of dry erase markers. These markers are usually used to write on white boards or glass surfaces and can easily be erased to make space for more writing or drawing. It turns out that they are also… Read more

Make Your Own pH Paper

Science Fair Project Idea

Scientific Method

This is a simple "kitchen chemistry" project about acid/base chemistry. Scientists measure the acidity or alkalinity of a solution using a logarithmic scale called the pH scale. In this project you'll learn about the pH scale, and you'll make your own pH indicator paper using a pH-sensitive dye that you'll extract from red cabbage. You can use your pH paper to measure the acidity/alkalinity of various household solutions. Read more

Optical Illusion Science Projects

Blog Post

Explore optical illusions and trick the eye with these science fair projects, experiments, and STEM activities. How Do Optical Illusions Trick the Eye? Optical illusions (also called visual illusions) can be fun, mind-boggling, mesmerizing, puzzling, and surprising! Our eyes don't always see what they should. An optical or visual illusion occurs when there is a disconnect between our brain and our eyes or when something goes wrong in the visual process. Science related to light, vision, and… Read more

Paper DNA Model

STEM Activity

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Ever wondered how DNA, the genetic blueprint of a life-form, can encode and pass on the information on how to grow and maintain that life-form? Just like a cookbook contains a complete recipe for a dish, DNA stores the recipe for the life of an organism. Although each human has a unique DNA sequence, the DNA in all of us is about 99.9% identical! In this activity, you will make a model for a short section of DNA—enough to get a sense of what DNA is like and how it encodes life. Read more

Stop the Train! Magnetic Brakes for a Maglev Train

Science Fair Project Idea

Scientific Method

Did you know that you can use magnets to build a train that floats above its tracks? In this project, you will also use magnets to make the train stop, preventing it from crashing into the end of the track. Will adding more magnets help the train stop sooner? Read more

The Reasons for the Seasons

Science Fair Project Idea

Scientific Method

Do you live someplace where you get to experience the full glory of all four seasons? If so, you know well the heady blossoms and dramatic skies of spring; the long, sun-drenched days of summer; the trees shaking in crimson and gold in fall; and the sparkling, brittle snows of winter. But you might not know why we have these seasons, over and over again, in a cycle as predictable as the rising and setting of the Sun. The reasons for the seasons are surprising and have to do with Earth's tilt… Read more

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