Elementary School Science Experiments (Page 198)

Rocket Science: Weekly Science Project Idea/Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of projects that fit right in with U.S. 4th of July celebrations and let you get hands-on with "rocket" science at any time of the year. What happens when you combine vinegar and baking soda? A chemical reaction! If you contain the reaction in a small space like a film canister, you can get a high-flying blast from the combination—your own mini rocket. But how much of each ingredient do you need? Experiment with the ratio of vinegar and baking soda… Read more

Rocky Secrets: Where Does Oil Hide?

Science Fair Project Idea

Scientific Method

You may have heard the expression, "You can't get blood from a stone." But what about oil? Can you get petroleum oil from a stone? In this geology science fair project, you'll find out what kinds of stones make the best storage rocks for oil. You'll see which ones can soak up oil like a sponge, and which ones cannot soak up oil or let it pass through, but can act as a "cap" to contain the oil in secret underground traps. Can a hard rock really act like a soft sponge... maybe SpongeBob… Read more

Rooftop Gardens: Are They a Cool Idea?

Science Fair Project Idea

Scientific Method

Would you like some sky vegetables for dinner? How about some fresh-cut roof flowers to put in vases in your house? Around the world, rooftops are being transformed into living green expanses. Besides beauty, rooftop gardens have a number of advantages, including growing food and taking carbon dioxide out of the air while releasing breathable oxygen. But can rooftop gardens also keep your house cooler and lower your energy bill? Try this science fair project to find out. Read more

Rooftop Gardens: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

Science Buddies Hands-On Projects: Science and Engineering for School and for Home In this week's spotlight: a pair of environmental engineering science projects for a hands-on look at the benefits of taking a rooftop approach to going and growing green. Can rooftop gardens help you keep your house cooler and lower your energy bill? Explore with a student science Project Idea or a hands-on family science activity: Rooftop Gardens: Are They a Cool Idea? (full Science… Read more

Salty Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a food science project or family activity that adds a dash of salt to questions about health and nutrition. The salt in your family's table shaker may be iodized because iodine is an important micronutrient that not everyone gets naturally in the foods they eat. To help prevent iodine deficiency, many salts contain added iodine (in the form of iodide). Not all salts are iodized, however. In this pair of projects, families experiment to see which salts contain… Read more

Salvage Science: Build and Test an Indoor Composter

STEM Activity

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Have you ever seen a product labeled “biodegradable” or “compostable” and wondered just how well it decomposes? A lot of different products claim to be biodegradable or compostable, such as food containers, bags, packaging materials, and spoons and forks. Not only do they clearly come in different shapes and sizes, but they’re made of different materials as well. Do they decompose differently, and, if so, which decomposes the fastest? In… Read more

Sauce Science: Weekly Science Project Idea and Home Science Activity Spotlight

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In this week's spotlight: a food science project and family activity perfect for the holiday kitchen! Are cranberries a part of your holiday menu? Does your family like a wiggly, solid cranberry roll, or do you make a looser cranberry sauce. What causes the difference in consistency? In these hands-on science projects, you and your family can experiment to see how cooking time affects the natural pectin in cranberries. From Sauce to Solid: The Science of Cranberry Condiments (full… Read more

Saucy Science: Exploring the Science of Marinades

STEM Activity

Have you ever tasted a delicious burger and wondered how it got so much flavor? Maybe you have heard your family talk about marinating foods before cooking or grilling them. A marinade is a mixture of seasonings used to flavor or tenderize food. Most cooks have strong opinions about the best way to marinate their favorite food, be it a large steak or a tofu burger. In this activity, you will do a test to see what factors might be most important in making a marinade stick to the surface of food.… Read more

Save a Life! Teach Hands-Only™ CPR

Science Fair Project Idea

Scientific Method

What would you do if you saw one of your friends lying on the floor, not breathing, possibly having a heart attack? Call 911? Start CPR (cardiopulmonary resuscitation)? Those would both be important things to do! But do you know CPR? Do your friends and family know CPR? Chances are, most of them don't. Even if they do know CPR, they might be hesitant to use their mouths to perform it. You can change that though. In this science project, you'll create a simple, interactive game that can teach… Read more

Scale Models

Science Fair Project Idea

Scientific Method

Many industries rely on scale models to develop new products and designs. Architects, industrial designers, artists, clothing designers, and car manufacturers all use scale models. Each model is built to a scale that relates the actual object to the model through a ratio. Can you determine a formula for constructing a scale model? You can use your formula to make a model of your house, school, neighborhood, or town (CUBE, 2002). You can make scale models of the Wright Brothers aircraft… Read more

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