Our favorite liquid for this viscosity was the hair gel ! MAKE SURE TO CHECK OUT: Valentines Day Slime Science Do those liquids have high or low viscosity?.Which liquid suspends the hearts the best?.It’s for Valentine’s Day after all?! Don’t have any hearts, why not try this with paper clips! STEP 3: You can also take it a step further by dropping in these little hearts. Optional: Label each cup in order of low viscosity to high viscosity. STEP 2: Kids can help pour liquids too. Pouring the liquids is a great opportunity to really check out their viscosity! Less viscous liquids will pour faster than more viscous liquids. If you want to try this with a class, you can provide a variety of liquids kids can choose from. STEP 1: Have your kids search around the house for a variety of liquids. HOW TO SET UP LIQUID VISCOSITY EXPERIMENT Various liquids (water, dish soap, oil, liquid glue, hair gel, corn syrup etc.).Talk about what is viscosity and provide examples (see above). Kids can certainly help to set up this Valentines Day viscosity experiment. Hair gel is much more viscous that oil, and especially more than water! Viscosity is affected by what the fluid is made of and the temperature of it.įor example water has a low viscosity, as it is “thin”. It describes how fluids show resistance to flow or how “thick” or “thin” they are. The word viscous comes from the Latin word viscum, meaning sticky. Viscosity is a physical property of fluids. Add colorful little hearts to really get a good look at what viscosity is all about. This easy viscosity experiment looks at different liquids from around the house and compares them to each other. Your little scientist will love these ideas!ĪLSO CHECK OUT: Easy Physics Experiments For Kids It’s a wonderful way to introduce science to younger kids. I love science activities that feel like play time too. Valentine’s Day science experiments can be quite simple but also very educational. We love simple science activities because they are so much fun and very festive! Simple Viscosity Experiment For Kids What you are really measuring is the change in volume as the tube has a constant cross area V=Area time height, and you mark the height in units of temperature.The fun thing about science experiments for young kids is that you can set them up easily and quickly with what you already have! This simple viscosity experiment with a Valentines Day theme is perfect for a little bit of kitchen science. For example, if you know how the density of mercury (or alcohol) changes as a function of temperature, you can construct a thermometer where you measure the height of the column. No, you actually measure something else that changes as the temperature changes. To measure the density of something you measure it's mass and volume, and then take the ration (d=m/v).ĭoesn't a thermometer measure temperature, an intensive property? You usually measure extensive properties. Not directly, as they change as the system changes.ĭo you measure intensive of extensive properties? But a Gas is compressible, and fills the container, so density alone can not indicate what the gas is.Ĭan extensive properties be used to identify what a substance is? For example, if a substance is incompressible (solid and liquid) the density is considered constant at a given temperature and pressure, and can be used to identify a substance (gold has a density of 19.3g/ml, and if a gold ring does not have that density, it is not pure gold (note the inverse is not necessarily true, just because the density is 19.3g/ml does not mean it must be gold, but that it could be gold). If you add one gallon of gasoline at 25 0C to a car's gas tank that contains a gallon of gasoline at 25 0C, you double the mass, volume and distance you could drive (energy of the gas), but the temperature does not double, and the density is the same.Ĭan intensive properties be used to identify what a substance is? Mass and Volume are extensive, while temperature and density are intensive. What is the Difference Between Extensive and Intensive Properties ?Įxtensive properties depend on the amount of matter (extent of the system), while Intensive do not depend on the amount of system. Examples include the state of matter, odor, color, volume, denisty, melting point, boiling point, temperature, electrical conductivity. Physical Properties describe the physical state of matter. Note, these solvents must not mix with each other (so one phase must be like an oil, and the next like water, as oil and water do not mix), and the particles will aggregate in the solvent whose densities are closest to them (they sink in lighter density solvents and float in heavier density solvents). In fact, we can sort plastic particles by placing them into different solvents of different densities, as shown in this Youtube. \): Density of common plastics Plastic Symbol
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