What's a cool experiment that you can do with stuff you have at home? like the old vinigar & baking soda thing
Answer:
1. Make Slime
You don't need to have esoteric chemicals and a lab to have a good time with chemistry. Yes, your average fourth grader can make slime. That doesn't mean it's any less fun when you're older.
2. Borax Snowflake
This is a crystal-growing project that is safe and easy enough for kids. You can make shapes other than snowflakes, and you can color the crystals. As a side note, if you use these as Christmas decorations and store them, the borax is a natural insecticide and will help keep your long-term storage area pest-free. If they develop a white precipitant, you can lightly rinse them (don't dissolve too much crystal). Did I mention the snowflakes sparkle really nicely?
3. Mentos & Diet Soda Fountain
This is a backyard activity, best accompanied by a garden hose. The mentos fountain is more spectacular than a baking soda volcano. In fact, if you make the volcano and find the eruption to be disappointing, try substituting these ingredients.
4. Penny Chemistry
You can clean pennies, coat them with verdigris, and plate them with copper. This project demonstrates several chemical processes, yet the materials are easy to find and the science is safe enough for kids.
5. Invisible Ink
Invisible inks either react with another chemical to become visible or else weaken the structure of the paper so the message appears if you hold it over a heat source. We're not talking about fire here. The heat of a normal light bulb is all that's required to darken the lettering. This baking soda recipe is nice because if you don't want to use a light bulb to reveal the message, you can just swab the paper with grape juice instead.
6. Color Fire
Fire is fun. Colored fire is even better. These additives are safe. They won't, in general, produce a smoke that is any better or worse for you than normal smoke. Depending on what you add, the ashes will have a different elemental composition from a normal wood fire, but if you're burning trash or printed material, you have a similar end result. In my opinion, this is suitable for a home fire or kid's campfire, plus most chemicals are found around the house (even of non-chemists).
7. Baking Soda & Vinegar Foam Fight
The foam fight is a natural extension of the baking soda volcano. It's a lot of fun, and a little messy, but easy to clean up as long as you don't add food coloring to the foam.
8. Ice Cream in a Baggie
Learn about freezing point depression, or not. The ice cream tastes good either way. This cooking chemistry project potentially uses no dishes, so clean up can be very easy.
9. Coffee FIlter Chromatography
Separation chemistry is a snap. A coffee filter works great, though if you don't drink coffee, you can substitute a paper towel. You could devise a project comparing the separation you get using different brands of paper towels. Leaves from outdoors can provide pigments. Frozen spinach is another good choice.
10. Burning Money
This is a magic trick using chemistry. You can set a bill on fire, yet it won't burn. Are you brave enough to try it?
This is a neat 'magic trick' that illustrates the process of combustion, the flammability of alcohol, and the special qualities of the material used to make currency.
Scientific Concept behind Burning Money
A combustion reaction occurs between alcohol and oxygen, producing heat and light (energy) and carbon dioxide and water.
C2H5OH + 4 O2 -> 2 CO2 + 3 H2O + energy
When the bill is soaked an alcohol-water solution, the alcohol has a high vapor pressure and is mainly on the outside of the material (a bill is more like fabric than paper, which is nice, if you've ever accidentally washed one). When the bill is lit, the alcohol is what actually burns. The temperature at which the alcohol burns is not high enough to evaporate the water, which has a high specific heat, so the bill remains wet and isn't able to catch fire on its own.
After the alcohol has burned, the flame goes out, leaving a slightly damp dollar bill.
This one is a classic, but make sure to do it OUTSIDE:
Diet coke and Mentos!
It really simple, go to youtube and search diet coke and mentos, watch, and learn!
Becareful with what you mix together some mixtures are highly toxic,some are explosive and flamamble. Your best bet is do not experiment with these mixtures of household products.Refer to a basic high school or college chemistry book for safe mixtures that are not deadly.
Take guar gum and add H2O to it. Next dissolve some borax in H2O. Add these two mixtures together and stir. After a few minutes the mixture polymerizes and you will have some slime.
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