Seven fun and easy science experiments you can do at home.
Apple slices brown very fast, so how can you get them to stay fresh longer? Lemon Juice! Use a cotton swab dipped in lemon juice to keep the apple fresh longer. this is because the lemon juices acids stop the apple from reacting to the oxygen in the air that would normally cause the apple to go brown.
Ever had a ugly old penny that you want to see shiny again? Well with a bit of vinegar and some table salt you can! Mix 2 parts of vinegar, with 1 part salt in a cup. Then using tweezers dip the penny in the cup and leave it there for about 10 seconds, when you pull it out the penny should be shiny and new looking. This is because the vinegar and salt have acids that dissolve the dirt and stuff off of the penny causing it to be shiny and new looking again!
How do you keep stuff cold in a cooler, for a longer amount of time? Ever had a party and had a cooler filled with ice for pop and beer, but the cooler didn’t keep the drinks at an optimal temperature and all the ice melted and became warm? Well this is how to “freeze” that problem from happening. Take a cooler and fill it with lots of ice then add some water so the water fills the area between the ice. Now add a bunch of salt to the cooler (amount of salt varies between amount of ice ratio is approximately 5 cups of ice to 1 cup of salt) and the cooler will cool to a lower temperature, cool down beverages faster, and last longer. This is because the salt lowers the freezing point of the water allowing it to go cooler without freezing! Amazing!
Beverage Cooling Times:
- Ice: 5-7 minutes
- Ice and Water: 25-30 minutes
- Ice, Water and Salt: 45-50 minutes
Ever wanted chicken bones that you could bend like rubber? Probably not but try this cool experiment anyway. Save a couple chicken bones next time you have chicken for dinner. Take of any meat, and leave them to dry for a couple of days, then coat the bones in vinegar and set them in a cup or jar, leave them for about a week before taking them out again, by then the bones should be bendable like rubber.
Make cool green slime out of every day kitchen ingredients. Mix 1 cup of corn starch and 1/2 cup of water with a couple of drops of green food coloring. After a while it should become slimy.
Remove an egg shell without cracking it. Take an uncooked egg, and but it in a cup, then fill the cup with vinegar until the egg is completely covered. Let it sit for 2-3 days then remove the egg from the glass. The eggs shell should have been dissolved by the vinegar and the outside of the egg should be all rubbery.
Colorful bottle. Fill a clear bottle 4/5 full of vegetable oil, then fill the rest of the bottle with food coloring. Shake and spin the bottle in different directions and watch the colorful water move through the vegetable oil. Like a lava lamp.