Open pop-up
Menu

Hello, Campers! Do you ever sing in the car or in the shower? It’s fun to sing your favorite songs, but you probably don’t sound quite the same as your favorite pop, country, or rap star. Have you ever Wondered why?

This part of Camp lets you explore how technology is used to create and fine tune recordings. How are sound effects made? How does Auto-Tune work? What does it mean to synthesize sound? Explore these Wonders and more In the Studio!

Select a Lesson

Maker Activity

6

Sensory Slime!
Slime is so fun to make and play with! This activity shows you how to make a basic version of slime, and a special "butter slime" musicians can use to warm up their fingers before a session.

Supplies!

BASIC SLIME

  • White PVA glue (basic school glue)
  • Activator (There are several types of activators, but they all basically work the same way. We've listed three popular activators below. You only need to use one type to make slime.)
    • contact lens solution + baking soda
      –OR–
    • borax + hot water
      –OR–
    • liquid starch OR liquid laundry detergent
  • Food coloring (optional)
  • Mixing bowl
  • Mixing utensil
  • Air-tight container

FLUFFY BUTTER SLIME

(includes items for basic slime, plus the following ingredients):

  • Foaming hand soap –OR– shaving cream
  • Cornstarch
  • Baby oil
  • Clay (model magic or daiso)

First

    BASIC SLIME
  1. First, pour some glue into a bowl. The amount of glue you pour in will be equal to the amount of slime you are going to have.
  2. Next, if you want to, add some food coloring or paint to give your slime a special color. It can take a lot of stirring to mix the color.
  3. Now you will add activator, which is when your slime will start to form. No matter which type of activator you use, you should add a little bit at a time and mix VERY WELL before adding more. This helps to make sure that you don’t over activate your slime. Too much activator will make your slime stiff and rubbery, so you’ll want to experiment until you find the right balance.
    • If you’re using contact lens solution and baking soda as the activator, put a tiny bit of baking soda into your glue mixture. Then, start adding the contact lens solution (a little bit at a time).
    • If you are using borax as your activator, mix half a teaspoon of borax with one cup of hot water. Mix this solution until the borax has dissolved.
    • If you use liquid starch or liquid laundry detergent as the activator, they don’t need to be specially prepared. They already have water added to them, so you can just pour them into your glue mixture.
  4. Play with it! Once you are done with it, store it in an air-tight container so that it doesn’t dry out.

Then

    FLUFFY BUTTER SLIME
  1. Start with some Basic Slime you've made and some foaming hand soap (or shaving cream) to make the slime fluffy.
  2. Add some corn starch to give it texture and to make it a bit less glossy. Add a little bit and mix it into the slime really well.
  3. Pour in some baby oil to give it some soft shine.
  4. Finally, mix in small amounts of modeling magic (or daiso) clay. This gives the slime a special texture and squishyness that makes it hard to put down!
  5. Play with it! Squish it, stretch it, pull it, squeeze it to give your hands a workout! It's a great way for musicians to get their hands and fingers ready to play their instrument. Once you are done with it, store it in an air-tight container so that it doesn’t dry out.

Next

Wonderuptions:
Is your slime thick or gooey? Which ingredient did you use the most of? How quickly does it take for slime to form?

Why does that happen?

Slime has some qualities of a liquid and some qualities of a solid. This is called a Non-newtonian fluid. Slime can be picked up like a solid, but it flows like a liquid. It will change its shape to fill whatever container it’s placed in (liquid), but it can also bounce and stay together (solid). You stretch slime slowly without breaking it, but if you pull it quickly, the same slime will break off more easily because you are breaking apart the chemical bonds.

The science of slime is all about polymers, which are made up of long, repeating chains of molecules. Glue is a polymer whose molecule chains slide easily around each other, allowing glue to flow like a liquid. The activator makes these molecule chains start sticking together instead of flowing around each other. This process is called cross linking, and it’s why free-flowing glue turns into a wonderful tangled glop of molecule chains—slime!

Still Wondering?
There are many different kinds of slime you can make, but most of them start with the same base.  Try experimenting with different recipes and see which you like the best!

Sources

Preschool - Age 8