Experiment 1: Ooblek
Cornstarch
Water
Food colouring (optional)
Experiment 2: Elephant toothpaste
Hydrogen Peroxide 6% dilute
Yeast
Dishsoap
Warm water
Food colouring
Experiment 3: DIY Lavalamp
Clear bottle
Vegetable oil
Food colouring
Water
Alka seltzer tablets
Experiment 4: Magnetic slime
PVA glue
Iron oxide powder
Liquid starch or contact lenses solution
Experiment 1: Oobleck
Materials Needed:
1 cup Cornstarch
1/2 cup Water
Food coloring (optional)
Procedure:
1. Prepare the Mixture:
o In a mixing bowl, combine 1 cup of cornstarch with 1/2 cup of water.
o Stir the mixture slowly. If you choose to add color, add a few drops of food
coloring to the water before mixing.
2. Achieve the Right Consistency:
o Continue mixing until the mixture reaches a consistency that behaves like
both a solid and a liquid. It should feel solid when you apply quick pressure
(like tapping) and flow like a liquid when you move it slowly.
3. Explore Oobleck's Properties:
o Solid Behavior: Punch or tap the surface quickly and observe how it
resists.
o Liquid Behavior: Slowly dip your hand into the mixture and watch it flow
around your fingers.
o Stretch and Break: Try stretching the mixture; it should eventually break
apart like a brittle solid.
4. Clean-Up:
o Oobleck can be messy. Cover your workspace with newspaper or a plastic
tablecloth.
o Dispose of oobleck in the trash, not down the sink, to prevent clogging.
Safety Tips:
Although oobleck is non-toxic, avoid ingestion.
Wash hands after handling.
Experiment 2: Elephant Toothpaste
Materials Needed:
16-ounce (500 ml) Hydrogen Peroxide (6% solution)
1 packet of Dry Yeast
3 tablespoons Warm Water
1/2 cup Dish Soap
Food Coloring (optional)
A clean, empty plastic bottle (16-ounce size recommended)
Small cup
Safety goggles and gloves
Procedure:
1. Setup:
o Place the plastic bottle on a tray or in a sink to contain the foam.
2. Prepare the Hydrogen Peroxide Mixture:
o Pour 16 ounces of 6% hydrogen peroxide into the bottle.
o Add 1/2 cup of dish soap to the hydrogen peroxide. Swirl gently to mix.
o If desired, add a few drops of food coloring for visual effect.
3. Prepare the Yeast Mixture:
o In a small cup, combine the dry yeast with 3 tablespoons of warm water.
o Stir for about 30 seconds to activate the yeast.
4. Initiate the Reaction:
o Pour the yeast mixture into the bottle containing the hydrogen peroxide
and dish soap.
o Stand back and watch the "elephant toothpaste" eruption! Foam will
rapidly expand out of the bottle.
5. Observe:
o The reaction produces a large amount of foam, demonstrating the rapid
decomposition of hydrogen peroxide into water and oxygen gas, with the
dish soap trapping the oxygen to create foam.
6. Clean-Up:
o After the reaction subsides, dispose of the foam in the trash.
o Rinse all materials with water.
Safety Precautions:
Wear Safety Gear: Always wear safety goggles and gloves when handling
hydrogen peroxide.
Use Proper Ventilation: Conduct the experiment in a well-ventilated area.
Handle Hydrogen Peroxide Carefully: Even at 6%, hydrogen peroxide can
irritate skin and eyes. Avoid contact and ingestion.
Supervise Children: Ensure that children are supervised by an adult during the
experiment.
Experiment 3: DIY Lava Lamp
Materials Needed:
Clear plastic or glass bottle (16-ounce size works well)
Vegetable oil
Water
Food coloring
Alka-Seltzer tablets
Optional: Flashlight for effect
Procedure:
1. Fill the Bottle:
o Pour vegetable oil into the bottle until it is about three-quarters full.
o Add water to fill the rest of the bottle, leaving some space at the top. You
will notice the water sinks below the oil since water is denser.
2. Add Color:
o Add 10-15 drops of food coloring to the bottle. The food coloring will mix
with the water but not the oil.
3. Create the Lava Effect:
o Break an Alka-Seltzer tablet into smaller pieces.
o Drop one piece into the bottle and observe the reaction. The tablet will
react with the water to produce carbon dioxide gas, which carries colored
water blobs through the oil, creating a lava lamp effect.
4. Enhance the Display:
o For a more dramatic effect, place the lava lamp on top of a flashlight. Turn
on the flashlight in a dark room to illuminate the blobs as they move.
5. Repeat the Reaction:
o Once the reaction stops, you can add another piece of Alka-Seltzer to
continue the effect.
6. Clean-Up:
o To dispose of the lava lamp, pour it down the sink with plenty of water to
separate the oil and water.
Safety Tips:
Supervise Children: Ensure children are supervised, especially when handling
Alka-Seltzer tablets.
Avoid Ingestion: Do not ingest any of the materials used in the experiment.
Handle the Bottle Carefully: The bottle may become warm during the reaction;
avoid touching it immediately after.
Experiment 4: Magnetic Slime
Materials Needed:
1/2 cup PVA (polyvinyl acetate) glue (white or clear)
1/2 cup Water
1 tablespoon Iron Oxide Powder (magnetite powder)
1/2 cup Liquid Starch or Contact Lens Solution (containing boric acid)
Food coloring (optional)
Mixing bowl and spoon
Magnetic object or strong magnet
Procedure:
1. Mix Glue and Water:
o In a mixing bowl, combine 1/2 cup of PVA glue with 1/2 cup of water. Stir
until fully blended.
2. Add Color (Optional):
o If you want colored slime, add a few drops of food coloring to the glue
mixture and stir until the color is even.
3. Incorporate Iron Oxide Powder:
o Gradually add 1 tablespoon of iron oxide powder to the glue mixture. Stir
thoroughly to ensure the powder is evenly distributed.
4. Activate the Slime:
o Slowly add 1/2 cup of liquid starch or contact lens solution to the mixture
while stirring continuously. The slime will begin to form and pull away from
the sides of the bowl.
5. Knead the Slime:
o Once the mixture becomes difficult to stir, use your hands to knead the
slime. Continue until it reaches a smooth, stretchy consistency. If the slime
is too sticky, add a bit more liquid starch or contact lens solution.
6. Test Magnetic Properties:
o Use a strong magnet to interact with the slime. You should observe that
the slime responds to the magnet due to the presence of iron oxide
particles.
7. Storage:
o Store the magnetic slime in an airtight container to keep it from drying out.
Safety Precautions:
Supervise Children: Ensure children are supervised, especially when handling
iron oxide powder and boric acid-containing solutions.
Avoid Ingestion: Do not ingest any components of the slime.
Wash Hands: After making and playing with the slime, wash hands thoroughly.
Handle Iron Oxide Powder Carefully: Iron oxide can stain surfaces and
clothing. Use gloves if necessary and protect your workspace.