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Fourth Grade Videos (1,202 results)

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Explore fun house mirrors in this fun hands-on STEM activity. Detailed instructions and the science behind the activity can be found in https://www.sciencebuddies.org/stem-activities/curved-mirrors?ytid=SrBNaFWHNN8&ytsrc=description . For mirror paper, click https://www.amazon.com/s?k=mirror+paper&ref=nb_sb_noss_1&tag=sciencebuddie-20 . Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12…
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Have you ever wondered how all the food that you eat gets digested? It is not only the acid in your stomach that breaks down your food – many little molecules in your body, called enzymes, help with that too. In this activity you will explore the foam-creating enzyme catalase. How much foam can you make? Written instructions are available on our website at https://www.sciencebuddies.org/stem-activities/explore-enzymes-catalase?ytid=FxjXrCyic6o&ytsrc=description Science Buddies also hosts a…
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Explore how enzymes work in three simple experiments using toothpicks as a model for enzymatic activity. In experiment one discover what happens to enzyme activity over time. In experiment two explore how changing the substrate concentration effects enzyme activity. And in the third experiment see how temperature alters the enzymatic activity.
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The iodine clock reaction is a fun way to investigate many reaction rate factors. In this video, we will show you how to carry out a green chemistry version of the iodine clock reaction that uses less toxic, more eco-friendly, chemicals than traditional versions. Can you find a way to precisely time the color change? Written instructions are available on our website at…
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When walking on the beach have you ever noticed that the wet sand around your feet seems to dry out? In this beachy activity, you will explore the wet sand effect and find out why the water around your feet disappears with every footstep you take! https://www.sciencebuddies.org/stem-activities/wet-sand-effect?ytid=Dg3uYPvSoIs&ytsrc=description Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12 parents,…
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See how you can extract supplemental iron from iron-enriched cereal. Detailed instructions and the science behind this science project can be found in https://www.sciencebuddies.org/science-fair-projects/project-ideas/BioChem_p027/biotechnology-techniques/iron-in-breakfast-cereal?ytid=GqxGn-7kQZY&ytsrc=description Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and teachers!…
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Calculate the horsepower of a toy car using nothing but a ramp and a stopwatch in this fun experiment. Written instructions for a science project are available on the Science Buddies website: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p124/physics/toy-car-horsepower?ytid=ZbdS3nATiiE&ytsrc=description Science Buddies also hosts a library of instructions for over 1,500 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and…
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Did you know that you have a blind spot in each eye? This fun science activity will show you how to find them! Written instructions are available on our website at https://www.sciencebuddies.org/stem-activities/blind-spot?ytid=27vUFAI3NLM&ytsrc=description Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and teachers! Visit us at…
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Make a black fire snake grow out of a pile of sand in this fun experiment! Where does the snake come from? How does it get so big? Learn about the chemical reaction and science behind the experiment in our written instructions: https://www.sciencebuddies.org/stem-activities/make-a-fire-snake?ytid=7xkbXPzBTHE&ytsrc=description Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and…
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Fires need fuel, oxygen, and heat to burn. So, what happens if one of these ingredients is taken away? In this video, we will show how you can extinguish a flame using a chemical reaction. Can you find out what makes the flame go out? Written instructions are available on our website at https://www.sciencebuddies.org/stem-activities/firefighting-foam?ytid=q8udWLU2HQk&ytsrc=description Science Buddies also hosts a library of instructions for over 1,500 other hands-on science projects, lesson…
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Free science fair projects.