Welcome to our new video series: ‘Discover At Home’! Our team at DHDC is here for you and your kids in this time of social distancing. Whether you’re continuing learning at home this summer, or just want to give your kids some fun learning experiences at home, keep an eye on this page, our YouTube Channel, our Facebook page and Instagram feed for new videos.
In today’s episode we are making it rain! This super cool and simple experiment demonstrates the different densities of oil and water, in a colorful way. Supplies: Vegetable/Canola Oil, Water, Food coloring (water base), Stir stick, 2 clear jars or glasses.
We’re switching things up a little today! Instead of an experiment, we’re showing you a live demonstration in the comfort of your own home. You can also come out and see the Tesla Coil in person, along with our All Charged Up and Amazing Butterflies exhibits not that we have re-opened!
☃️Today’s experiment comes from the science kits we have available for donations of $35.00 or more on our website here: https://63698.blackbaudhosting.com/63… This fun InstaSnow powder is just one of the many ‘cool’ supplies in the kit. ❄️The InstaSnow powder is a super-absorbant polymer. A polymer is a substance that has a molecular structure consisting of a large number of similar units bonded together. “Poly” meaning “many” and “mer” “parts”, polymer = many parts. The InstaSnow absorbs the water and the long chains of molecules swell to an enormous size – it even feels cool to the touch! We can all appreciate that on these hot summer days. Show us your science! #DiscoverAtHome
This week we will take a look at Centrifugal force which is the force that pushes out on an object moving in a circle. You might want to try this outside! Supplies you need: plastic cup, string, water, optional – flat surface like cardboard or wood. Can you think of any real life examples of centrifugal force? Show us your science! #DiscoverAtHome
💨Build your own air cannon with supplies you have at home!
Supplies you need: Solo cup, Plastic wrap, Scissors, Rubberband, Paper
Can you use the air push into a specific target? With an Air Cannon, the air can be channeled into a certain area by forcing air through a hole in your cannon. When you tap on the plastic wrap on the larger opening of the cup, it pushes air quickly and forces it to come out of the smaller opening. As the air is forced out, it creates a vortex that circulates the air in the shape of a ring.
Use your cannon to see if you can knock over your paper, or try a stack of cups. What will help the air move? Does it make a difference how fast/hard you tap on the plastic? You can also try using a balloon on the end. Show us your science! #DiscoverAtHome
🧪DO TRY THIS AT HOME! Try this fun experiment inside (protect your surface) or outside (how big can you make it?)! Supplies you need: Plastic bottle, Hydrogen peroxide, Dish soap, Warm water, Yeast, Food coloring (optional)
🧬What’s happening? In this experiment, the yeast is working as a catalyst. Adding the yeast releases the oxygen molecules from the hydrogen peroxide solution so you have water and oxygen. When you add soap to water and oxygen, you get….bubbles! Elephant toothpaste is an example of an exothermic reaction. An Exothermic reaction is a chemical reaction that releases energy through light or in this case, heat. “Exo” translates to “out” and “Thermic” means heat.
🐘How fast can you make your ‘toothpaste’ come out? What color combinations can you make? Show us your science! But please, leave this ‘toothpaste’ for the elephants.
Here’s a fun and easy activity for you to try -🚀 Mini Rockets. ✂️Supplies you need: Scissors Tape Paper Round Pencil Bendy Straw 🚀 The Science: These little rockets demonstrate Newton’s 3rd Law – for every action there is an equal and opposite reaction. In this example, the force of your breath puts a force on the rocket, making it fly in the air! #rocketscience Share your rockets with us! How far did yours go? Can you add anything to make it fly farther? Tag us in your experiments @DHDCAmarillo.
Episode 15: Butterflies
Missing our Amazing Butterflies exhibit? Here’s a way you can make your own butterfly while we wait to reopen! This simple craft is a fun activity for all ages! Supplies you need: coffee filter, paper plate, markers, spray bottle with water, and pipe cleaner. Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 14: Inertia Trick
What is inertia? Inertia is the name for the tendency of an object in motion to remain in motion, or an object at rest to remain at rest unless acted upon by a force. Let’s try it!
👩🔬Here’s what you need: Hex Nut (or penny), Empty plastic bottle and a Ring.
Try it out and let us know if it worked for you! What other objects did you try? Did they work? Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 13: Water Gel
For today’s science at home you will learn how to amaze your friends (or immediate family) with this cool magic trick using….diapers! Here’s what you need: 3 Clean diapers/pull-ups, 3 cups of water.
👩🔬THE SCIENCE: The secret to this trick is a super-absorbent polymer called sodium polyacrylate. A polymer is, essentially, a long chain of like molecules (monomers). The prefix “poly” means many; the prefix “mono” means one. Super-absorbent polymers are able to expand exponentially when they come in contact with water. The molecules of the polymer draw the water in and then hold onto it. In this instance, it’s able to absorb 100x its own weight in water! Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 12: Salty Ice
🧂💧There’s plenty to learn from frozen water (or a frozen water balloon), starting with the patterns of bubbles—or lack thereof—in the ice. What you need: Balloon or bowl, Boiled water (try one boiled and one tap), Salt, Cookie sheet and Food coloring.
The water in ice freezes from the outside in. As the water freezes, it creates pure crystals of water, which are clear. Meanwhile, impurities such as air or minerals are left behind in the liquid, where they concentrate until they come out of solution as bubbles. One bubble can seed a neighboring bubble, creating a radial chain of bubbles. Since bubbles scatter light of all wavelengths, they give the ice a white, opaque center. Pouring salt on the ice will cause it to melt, even at temperatures below freezing. In any ice/water combination, there is an ongoing back-and-forth in which some liquid water molecules are freezing while some solid water (ice) is melting. Ions of sodium and chlorine from the salt get in the way of ice-crystal formation, turning the back-and-forth into more of a one-way street in which more ice melts then freezes. As the salty liquid water flows down the frozen solid, it begins to form meandering streams, just like rivers! Most substances shrink as they cool, but water is a notable exception, freezing into hexagonal crystalline structures that take up about 10 percent more space than liquid water. This increased volume translates into lower density, causing ice to float. A solid ice mold placed in water displaces its weight in water—this is Archimedes’ principle—with 10 percent of the ice mold above the surface and 90 percent below.
👩🔬Try it out and show us your ice! Can you melt the ice with anything else? Try freezing boiled water or using bottled water and note the differences. Using a magnifying glass, inspect the ice block and report your discoveries! Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 11: Static Balloons
What you need:
2. Lightweight objects like an empty soda can, cork, feathers, tissue paper
Everything around us is made up of atoms, and atoms have a nucleus, protons, neutrons and electrons. The electrons in the atoms trade off sometimes and that is what will build up to shock you whenever you rub your socks on the carpet in the winter (or everyday in Amarillo). When you rub the balloon against your shirt and then hold it up to your hair, the electrons from the rubber and from your shirt have built up and want to connect with something else. In order to connect they have to move from one place to another and can create a force that can lift hair, paper, and even move cans around.
👉Try This: What else can you move around? Do other items collect static like the balloons? Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 10: Inertia Egg
What is inertia? Inertia is the name for the tendency of an object in motion to remain in motion, or an object at rest to remain at rest unless acted upon by a force. Try this cool trick testing inertia and let us know if you are successful! You will need: 3 cups half full (half empty?) with water, 3 toilet paper rolls (don’t waste that TP!), 3 hardboiled eggs (raw if you’re brave), towel, tray and a paper towel roll (optional). Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 9: Bouncy Eggs
Here’s another fun Easter weekend EGG-speriment for you! For this one, you will just need: Raw Egg, Vinegar, Water and a Bowl. Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 8: Easter Art
We’re celebrating Easter this weekend with a few egg-citing crafts and egg-speriment videos! Try making this Easter art using simple household supplies. You’ll need a large pan, shaving cream, food coloring, egg shaped paper, a toothpick and something to scrape off the excess shaving cream. How many different designs can you make? What colors mix well together? Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 7: Parachutes
💨Parachutes were designed for one basic purpose: to slow down falling. A parachute will use the air to “drag” against as it moves toward the earth. The canopy of the ‘chute hits the air molecules, causing resistance as it floats downward.
🗣Discussion Points: Does the shape of the parachute make a difference? If you test a round, square and rectangular ‘chute, will they fall at the same speed? Does the wind affect the fall? What about the weight that the parachute is holding? Show us your Science – share your experiments with us @DHDCAmarillo.
Episode 6: Oobleck
💡 Oobleck is a funny substance that can behave like both a liquid and a fluid at the same time. These special substances are called non-Newtonian fluids. When you punch the oobleck, the particles are so close together, it is really hard for them to move around when a force is applied quickly, and it will act like a solid. When forces are slowly applied (like gravity), Oobleck will behave like a liquid and fill a container.
👉Try this: Can you roll the Oobleck in a ball in your hands? Can it protect an object if it’s dropped in a bag together? What are some experiments you can come up with? Tag us in your experiments!
Episode 5: Paper Airplanes
🛩Paper Airplanes (Hoopsters):
In order to make something fly, or glide, both gravity and the air play a role. Gravity will pull an object down, and the air will help hold it up. If you drop a piece of paper, it will swish back and forth as it falls. It has to push the air aside as it makes its way down, and because a flat sheet of paper has a lot of surface area, it will fall slowly. Now, ball up that same piece of paper, and see if it falls at the same rate. In order for something to glide, there must be a balance between the gravity that pulls and the lift provided by the air, and the design of the aircraft is important in this balance. Flat fliers add drag on the tips of their wings, and the hoopster design will take that away.
👉Try new designs. If you add something, what works? What doesn’t? Can you add extra hoops? Weight? Tag us in your experiments. @DHDCAmarillo
Episode 4: Friction Balloon
🎈Friction Balloon: Why is this balloon screaming at me?! There are a lot of forces at play here. When you spin the hex nut around the balloon you are using centripetal force to push it against the balloon as it rolls in a circle. As it does this, the nut will bounce as it spins causing friction with each of its 6 points. This friction makes the balloon vibrate causing a crazy, screaming noise to come out of the balloon.
👉Try this: What happens if you change the materials used? Does it make a difference if the balloon is a different size? If the round object is smooth? Tag us in your experiments! @DHDCAmarillo
Episode 3: Baking Soda & Vinegar
Why is mixing vinegar and baking soda so exciting? Because it gets a (chemical) reaction! A chemical reaction happens when you have two chemicals that combine to form something new. Baking soda (sodium bicarbonate) is alkaline (basic) and has a higher pH than 7 on the pH scale. Vinegar (acetic acid) is acidic and has a pH lower than 7. Whenever you mix the two, the hydrogen atoms mix together to form an acid-base chemical reaction. The “new” things that we form when these two ingredients are mixed together (carbonic acid and sodium acetate) will have a SECOND chemical reaction called a decomposition reaction where these new ingredients will break down into water and carbon dioxide (the stuff we breathe out).
🗣Discussion points: What different states of matter do we see in this experiment? Do the amounts of the ingredients used make a difference? What did you find out? Tag us in your videos on social media! @DHDCAmarillo
Episode 2: Convection Currents
We see convection currents in weather and in the oceans when you have a big difference in temperature. Hot water or air takes up a lot more space (is less dense) than cold water or air. In this experiment, the hot water will sit on top of the cold water without mixing because the water molecules will spread out (just like when you are hot, you don’t like to be right next to your friends) and the colder water molecules will condense together and take up less space. The hot water can’t muscle its way through the colder water because there’s not enough space for it to fit, so it will sit on top. When you have the cold water on the top, the hot water will want to find room to expand, and move upward, mixing the colors together.
🗣Discussion points: What are different ways to experiment with this? Does the temperature of the water make a difference? What if you have colored ice? We want to see your science at home, tag us in your experiments! @DHDCAmarillo
This explosive reaction happens with the magic of soap molecules. When you combine the soap with the fat in the milk, it will begin jumping around. Dishwashing soap molecules pull in fat molecules to part of it. When the molecules attach, they will move around to make sure that every molecule is paired up, and this is what will make the color shoot around in the pan! Does the type of milk make a difference? Will the same reaction happen in water? We want to see your science at home, tag us in your experiments! @DHDCAmarillo
Thank you to our Social Distancing Science video sponsor: Sonic Amarillo
Feel free to email any questions you have about the science behind these experiments to our Executive Director, Dr. Aaron Pan at firstname.lastname@example.org.
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