The tribes of the Red Indians in America used to puff smoke signals to one another as warning signs. You may have seen this in some of old western movies. In this experiment we will try to do same but in water and with water.Things Required:2 large-mouthed, clear, glass, quart-jarsRed food colouringSmall baby food jar6-inch […]
When one substance gives oxygen to another, chemists say it is “reduced,” and the substance that receives the oxygen is said to be “oxidized”.Now you can produce this chemical change, oxidation, and see how it works. Things Required:Metal objects: paper clips, nails, washers, steel wool, tacks, pinsJars with lids: same and different sizesLiquids: water, salt
This fun-filled experiment will enable you to make smoke rings in water. Amazed! Well, why don’t you give it a try?Things Required:1 large-mouthed, clear, glass, quart jarRed food colouringSmall baby food jar6-inch square of aluminium foilRubber bandPencil1 ice cubeDirections:Place the ice cube in the baby food jar. Fill the jar with cold water. Fill the
In this experiment, we will make a bottle of spicy perfume.Things Required:Small baby food jar with lidRubbing alcohol15 whole cloves Directions:Place the whole cloves in the jar. Fill the jar one-half full with the rubbing alcohol. Secure the lid and allow the jar to set for seven days. Use your finger to dab a few
Here in this experiment, you can easily turn dull copper into bright, shiny coins.Things Required:Dark, dull copper coinsA small, flat container2 disposable cups1 teaspoonful of salt1 tablespoonful of water2 tablespoonfuls of vinegarMedicine dropperPaper towelDirections:Place the coins in the container. In one cup, make a solution with the salt and water. Pour the vinegar into the
By performing this simple experiment you will observe a colour change as a solution becomes more dilute.Things Required:1-gallon glass jar1 cupRed food colouringDirections:Pour 1/2 cup of water into the gallon jar. Add and stir in one drop of food colouring. Add one cup of water at a time to the jar until the red colour
Observe the separation of an emulsion in this simple experiment.Things Required:1/4 cup of liquid oil1/2 cup of waterBlue food colouring1-quart glass jar with a lidDirections:Pour the water into the jar. Add five drops of the food colouring and stir. Slowly, add the liquid oil. Secure the lid and shake the jar vigorously for ten times.
Why not make your own silver cleaner? It’s cheaper and may be better than cleaner from the store.Things Required:Small container with water1 teaspoonful of baking soda1 teaspoonful of saltAluminium foilSome small enamel or glass potSilver coinsWaterUse of stoveSoft clothDirections:In the small container, dissolve the salt and soda in a small amount of water. Place the
The purpose is to observe that suspensions are cloudy and contain solid floating parts that can be seen.Things Required:ScissorsCardboard box2 clear drinking glasses1 teaspoonful of flourTorchDirections:Turn the cardboard box upside down. Use the point of a pencil to make a small hole in the end of the box. The height of the hole should be
Purpose to observe the layering of undissolved materials.Things Required:2 tablespoonfuls of flour2 tablespoonfuls of any large dried beanQuart glass jar with a lidDirections:Place the beans and flour in the jar. Fill the jar with water. Screw the lid on tightly. Shake the jar to mix all the materials thoroughly. Let the jar stand undisturbed for
How would you like to make your own bath solution? This solution will make your water softer, and soft water makes more suds to clean you better. It’s fun and easy, and it’s real chemistry.Things Required:1/2 cup of washing sodaA clean, medium-size jar with lid, filled with waterA saucer or small dishA spoon Directions:Pour some
In this experiment, we will try to separate the floating parts of a suspension by spinning.Things Required:HammerNailClear drinking glass1-lb. metal coffee canCotton string2 tablespoonfuls of flour Directions:Use the hammer and nail to make two holes across from each other beneath the top rim of the can. Tie the ends of a two-foot piece of string
In this experiment, we will learn the difference between weak solution and concentrated solution.Things Required:Instant teaTeaspoon2 cupsDirections:Fill the cups with water. To one cup add 1/4 teaspoonful of instant tea and stir. To the second cup add 1 heaping teaspoonful of instant tea and stir. Observe the colour of the tea solution in each cup.This
Can you make chicken bones soft and even bend them? Try this experiment and see.Things Required:A large wide-mouth jar1½ cups of vinegarSome clean chicken bones(leg bones work best)Directions:Place the vinegar in the jar and put the clean bones in it. Make certain the bones are completely covered bythe vinegar. Leave the bones to set for
The purpose of this experiment is to observe the separation of colours in ink.Things Required:Green and black water-soluble pensCoffee filterSaucerPaper clipDirections:Fold the coffee filter in half. Fold it in half again. Make a dark green mark about one inch from the rounded edge of the folded filter. Make a second mark with the black marker