Fourth Grade Science Experiments (Page 195)

Gingerbread STEM!

Blog Post

Gingerbread houses and characters are a great way to capture students' attention in the days leading up to winter break! Shake things up this December with a gingerbread house building STEM challenge in your classroom or try one of these other fun gingerbread-themed science and engineering explorations. Gingerbread STEM! Activities involving gingerbread houses and gingerbread people pop up in many classrooms in December and through the winter months.… Read more

Go Suck an Egg!

STEM Activity

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Have you ever been helping in the kitchen and found yourself with a recipe that calls for egg whites? Do you use the egg shell to separate the egg yolk from the egg white? Instead of using the shell to separate them, you can use science! In this activity, you will use simple tools to explore how physics can help you do everyday tasks – such as separate egg yolks from egg whites. Read more

Go Wild! Try a Wildcard

Science Fair Project Idea

Scientific Method

Everybody's favorite card in UNO® is the wildcard—why? Because it can stand for any card you want! Your computer uses the same idea. A wildcard on your computer can stand for anything you want when you search. Do this science project to find out if using wildcards to conduct a search can help you find more of what you're looking for. Read more

Go With the Flow

STEM Activity

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Do you ever wonder why we perform tasks in a particular way? Very often, we learn by copying someone and never stop to question if there is a more efficient or easier way to do something. This activity is about the tricky task of pouring from a full container. Could there be an easier way to do it? Read more

Golf Clubs, Loft Angle, and Distance: The Science of Hitting

Science Fair Project Idea

Scientific Method

Use a video camera to analyze the angle of lift with different clubs. Measure the distance the ball travels. Be sure to conduct a sufficient number of trials with each club so that your results are consistent. This can also be a great way to work on your swing! (Idea from Goodstein, 1999, 83-85.) Read more

Gravity-Defying Water

STEM Activity

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Can you turn a cup of water upside-down without the water pouring out? Sounds impossible, right? This project will show you how you can do it using a neat physics trick! Read more

Hanging Around with Sound: Make Your Own Secret Bell!

STEM Activity

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Have you ever tried making "walkie-talkies" using a long piece of string and two tin cans? If you have, you know that they work surprisingly well—at longer distances you can hear people better through the cans and string than you can through the air! In this activity we're going to use the same concepts to build a personal bell, one that makes sounds that only you can hear! Read more

He Huffed, and He Puffed, But Didn't Blow the House Down! How Can Straw Make a Sturdy Building?

Science Fair Project Idea

Scientific Method

In the fairy tale of the three little pigs, the wolf huffed and puffed and blew down the first pig's straw house. But in reality, straw, tied into bales, is a viable building material that, when used properly, makes sturdy and energy-efficient buildings. Straw is a renewable resource that is available all over the world since it is the byproduct of growing grain. In this science fair project, you will test a straw bale covered with stucco to see if it's water resistant, and evaluate if it's… Read more

Heating with the Greenhouse Effect

STEM Activity

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Have you ever thought about where the vegetables you eat are coming from when it is too cold outside to grow them? They might have been shipped from a different country to your home town, or they may have been grown locally in a greenhouse. Greenhouses are huge house-like structures that are usually made mostly of glass. How can they protect plants from the cold? In this activity, you will find out and create some extra heat from the sun. Read more

Helmholtz Resonance and Musical Instruments

Science Fair Project Idea

Scientific Method

Helmholtz resonance, or air cavity resonance, refers to the resonance of air in a container with a small opening, like a plastic bottle or the devices shown in Figure 1. The resonant frequency of the air depends on the volume of the air in the container and the geometry of the opening (its length and cross-sectional area). The Helmholtz frequency is not the same as the natural frequency of an air column in a cylinder, where the opening is the same size and shape as the rest of the cylinder. … Read more

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