25 EASY Science Experiments You Can Do at Home!



How to Make Fun Experiments Home

Three Parts:

Experiments at home are a fun way to learn some basic science and create a few interesting things. The experiments suggested here are provided for their ease of creation and their huge fun factor. They can be made by responsible older children alone, or they can be supervised, depending on the child's age and needs.

Steps

Writing invisible messages

  1. Assemble the ink ingredients.To make invisible ink many things can be used, choose from one of the following:
    • Orange juice
    • Milk
    • Lime
    • Grape juice. 
  2. Find a writing implement.For example, a cotton bud, toothpick, paintbrush or a fountain pen.
  3. Write on the paper using the "ink" of choice and the writing implement.Let it dry completely before sending to someone.
    • Attach a note. Writing invisible messages is fun but it can be a problem if the person who gets the invisible message does not know that it has a message; he or she might think of it as something else like a prank. If the recipient isn't aware, send a note along with it saying, for example: "Dear [X], This blank paper has an invisible message. To read it heat it or look at it under a bright light."

Making beautiful crystals

  1. Gather the necessary items to create the crystals.To make crystals you need very few things:
    • 100 g or more crystal powder (If you want to grow a big crystals, you should have more than 100 g)
    • 100 ml distilled water (or boiled water)
    • Filter paper
    • 2 clean jars.
  2. Note from the outset:Do not taste or touch the crystals, or the substances used for making the crystals. Some are highly toxic (potassium dichromate, potassium nitrate or iodine compounds).
  3. Mix the crystal powder and the water.
  4. Stir until the powder stops dissolving.
  5. Filter the obtained solution.Don't worry if the powder wasn't all dissolved. You should keep the powder on the filter paper.
  6. Place the solution in a clean jar after it is filtered.Cover the jar with something, such as a layer of wax paper or a lid or maybe a filter paper. Otherwise, the solution may attract some impurities from the air and then it will grow many "parasitic" crystals.
    • Don't put the jar on a heat source.
  7. Let the solution sit for a while.A big crystal isn't going to grow all of a sudden. Wait a while. The next time you take a look at your crystals, you'll see that there have grown many crystals. Choose one that you like (a seed) and put the remaining crystals where you put the remaining powder.
    • If you want to grow many little crystals quickly, you can heat the water. However, if you want to grow big nice crystals, you shouldn't do that, as it won't work for a large crystal.
    • If you want to grow a little crystal quickly, you can put a little "crumb" from the powder as the seed.
  8. Filter the solution again.Then put your little crystal into the solution. (You may do this every time you see little crystals.)
  9. Add new solution when needed.When you see that in the jar isn't enough solution to cover the whole crystal, make some new solution as you have made the first one (I mean make the solution in a clean jar, filter it and then fill the jar that have you're crystal).
    • Growing crystals takes a lot of time, so be patient. They take at least a few days.
    • If you have some small crystals sticking out of your crystal, put your crystal in water and leave it there until you don't see any more small crystals.
    • Crystals are fragile and break easily. Move the jar with care.

Making slime

Depending on how you make this slime, you'll get something that's stringy or slimy or more solid like putty; it's up you and how you want to make it. This variation on slime, putty, gak or flubber may remind you of a similar substance found in many toy stores. It is the most popular version of do-it-yourself slime. Easy to make, it serves as a great visual tool for introducing students to the properties of polymers.

  1. Assemble the items needed.Use clear PVA solution––this is the secret to great slime. The measurements do not have to be exact but it’s a good idea to start with the proportions below for the first batch. Just vary the quantities of each ingredient to get a new and interesting batch of goo.
    • Elmers glue (8 oz bottle of Elmers Glue-All) 
    • Borax (a powdered soap found in the grocery store)
    • Large mixing bowl
    • Plastic cup (8 oz size works well)
    • Spoon
    • Measuring cup
    • Food coloring
    • Water
    • Paper towel (to clean up)
    • Zipper-lock bag (to keep it when you're done)
    • Water.
    This recipe is based on using a brand new 8 ounce bottle of Elmer’s glue.
  2. Empty the entire bottle of glue into a mixing bowl.
  3. Fill the empty bottle with warm water and shake (put the lid on first, then shake).Pour the glue-water mixture into the mixing bowl and use the spoon to mix well.
    • Go ahead. Add a drop or two of food coloring, if using.
  4. Measure 1/2 cup of warm water into the plastic cup.Add a teaspoon of borax powder to the water. Stir the solution – don’t worry if all of the powder dissolves. This borax solution is the secret linking agent that causes the Elmer’s glue molecules to turn into slime.
    • While stirring the glue in the mixing bowl, slowly add a little of the borax solution.
  5. Notice the reaction.Immediately you’ll feel the long strands of molecules starting to connect. It’s time to abandon the spoon and use your hands to do the serious mixing. Keep adding the borax solution to the glue mixture (don’t stop mixing) until you get a perfect batch of Elmer’s slime. You might like your slime more stringy while others like firm slime. Hey, you’re the head slime mixologist – do it your way!
  6. Store properly.When you’re finished playing with your Elmer’s slime, seal it up in a zipper-lock bag for safe keeping.





Video: 32 EASY HOME SCIENCE EXPERIMENTS THAT LOOK LIKE A PURE MAGIC

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Date: 05.12.2018, 14:22 / Views: 44474