Plastic Milk?!

photo via Austin Kids

Plastic Milk
One cup of milk
4 teaspoons of white vinegar


how to:
1. Heat up the milk until it's hot
2. Pour the milk into a bowl
3. Add vinegar to the milk and stir for 1 minute
4. Dump milk through a strainer 
5. Rinse the chunky milk in water and start molding it.
6. After you have made a design you like, let it harden. Then, you can paint it.

explanation: "When milk and an acid mix together, the milk begins to change properties. The milk begins to separate into a liquid and a solid. The solid material consists of minerals, fat, and a protein called casein. This protein is made of long molecules. Those molecules allow us to bend the lumps like rubber until it hardens and resembles plastic."  - AustinKids.org

Rocket Reactions!

 First, make an explosion!



Now, make a rocket with a film canister! Kids end up with a stellar toy that they can reuse!


Science: "When you add the water it starts to dissolve the alka-seltzer tablet. This creates a gas call carbon dioxide. As the carbon dioxide is being released, it creates pressure inside the film canister. The more gas that is made, the more pressure builds up until the cap it blasted down and the rocket is blasted up." - Science Bob (click here for instructions)

Try this rocket from Steve Spangler, no film canister needed!

Rainbow Glitter Crayons

Don't throw those broken crayons away, recycle them!

1. Preheat your oven to 275

2. Spray a muffin pan with vegetable cooking spray

3. Fill the muffin pin with broken crayons (mix and match shades and colors- whatever you would like!)

4. Sprinkle glitter on top

5. Bake for about 10 min at 275 (check on them)

6. Take them out when they look melted through

7. Next, use a toothpick and create swirls

8. Let them completely cool down (you can put them in the freezer to speed the process)

9. Finally pop them out (tap the bottom of the pan to help) and you're ready to draw!

Blooms Recycled Paper

Making paper out of recycled newspaper and old paper scraps is a great way to show kids how to be greener. For some extra fun and to be even greener, add flower seeds to your paper solution. When the paper dries, kids can plant their paper and watch their seeds grow. 

1. You'll need to window screen/ frame for this
2. Let all your scraps soak in water overnight
3. Next, blend scraps in a blender
4. Pour the scraps out and add water in a large, deep container
5. Add flower seeds (Marigolds work really well)
6. Dip your screen in and lift up
7. Leave paper solution on the screen to dry overnight
8. Once paper is completely dry, pull off of screen
9. Cut your paper into squares and give to kids to plant!

Plant your seeds in a cup, pot, or your backyard in soil. Make sure your seeds get plenty of sun and water.

Colored Cubes

The Colored Cube experiment is great for teaching kids primary and secondary colors. All you need is Sprite and colored ice cubes (2 red, 2 yellow, and 2 blue). Put a red and yellow cube in one cup, blue and yellow in a second cup, and red and blue in a third cup. Next, pour Sprite into all of your cups. Voila, kids see how primary colors mix in action! Below is an experiment my class conducted.

EGG-cellent Experiments!

Naked Egg - create a bouncy egg! Kids dissolve the shell away with vinegar!

You made a naked egg, now what?! Shrink it and blow it back up again! You can also add black syrup and examine the inside!

Featured above:
Check out The h bar for lots of twists on the classic naked egg experiment!
Visit Toledo Imagination Station for an osmosis experiment! Kids shrink their naked egg with corn syrup. Then, they inflate it with water!

Click here for simplified instructions for Naked Egg Part 1 and Part 2
To learn all about eggs, check out Egg Fun!

 Egg Geodes - crystallize an egg shell!

Rock Candy Science

photo via math and reading help 

Rock Candy Recipe, fun to watch and even more fun to eat! Below are two ways to create crystal candy!

Method 1 - Science Bob

materials:

1 cup water

2-3 cups sugar

wooden skewer or chopstick

clothespin

jar or tall glass

1. Pour 1 cup of water into a pot and bring to a boil

2. Add 1/4 cup of sugar and stir until dissolved

3. Slowly add more sugar and stir until dissolved

4. Remove from heat and let cool for 20 minutes

Optional - Divide solution into different bowls (the number of bowls depends on how many colors you would like). Add food coloring to each bowl (you can add flavoring as well if desired)

Optional - Dip half of skewer into the warm sugar solution and coat with granulated sugar (let it cool completely so the sugar is adhered)

5. Pour solution into your jar almost to the top

6. Dip the skewer into the jar straight down the middle (not touching the sides). The skewer should be 1 inch from the bottom of the jar

7. Clamp the clothespin on the skewer horizontal, so it lays on top of the jar to balance the skewer.

7. Let the jar cool and place in a safe spot

Watch the crystals grow!

Method 2

Note: Instead of using a skewer and clothespin, you can also try this method:

- While sugar solution is cooling, take a pencil and tie cotton string to the center of it 
- Dampen the string with your sugar solution, then dip in regular sugar (let dry)

- Pour sugar solution into your jar, suspend the string into the jar, and let the pencil lay flat on top

- Cover the jar with a paper towel to keep it clean

- Allow your crystals to grow 3-7 days

Soap Souffle!

Ivory Soap is the soap that floats! It contains air pockets. The microwave heats the air and water inside of it. The water vaporizes and the air expands, changing its physical state. You can conduct an experiment with Ivory Soap and another bar brand. Ivory puffs due to the air inside, while others will simply melt. (Microwave for 90 seconds to 2 minutes on a plate). Another experiment you can try is testing Ivory soap against another bar brand in a bowl of water. Ivory will float, while others will sink. You'll need 2 fresh bars of soap. Legend behind floating soap @ Ivory. For more science behind the experiment visit Steve Spangler!

Soda Straw Oboe

illustration via sciencebuddies.org

Visit Physics.Org for instructions! Then, head over to Science Buddies to find out how you can turn this into a science fair project!

Buzz Noise Maker

Elephant Toothpaste

Create a giant tube of an overflowing stream of "toothpaste." For written instructions, visit Science Bob!

Balloon Rocket Race

Kids love balloon rocket races! Left is one I conducted in my classroom. 

materials: 2 Balloons, 2 (10-15") pieces of string, 2 plastic straws, tape

1. Tie one end of the string to a chair. 
2. Put the other end of the string through the straw.
3. Stretch the string tight and tie it to another chair.
4. Blow up the balloon. Hold the end of the balloon and tape the straw on top of the balloon. You're ready for launch!
5. Let go and watch the rocket fly! Visit Science Bob for the explanation!

Add a little math to this science project by measuring different lengths of string. Does longer string produce better, faster results than shorter string?

Scientific Sound Effects

Make a balloon scream with a hex nut or coins! Visit Steve Spangler for the explanation behind screaming science! For screaming balloon instructions click here!

Fun with Mentos

All you need is Diet Coke + A roll of Mentos Mints. Make sure you add ALL of the Mentos at once, inorder to get a high explosion! 

Lava Lamp!

materials:

soda bottle

3/4 cup of water

vegetable oil

Alka Seltzer

food coloring

instructions:

1. Pour water into the bottle.

2. Add vegetable oil into the bottle until it's almost full. Let the oil and water separate.4. Add 10 drops of food coloring.
3. Break the tablet in half and drop the half tablet into the bottle. To keep the effect going, just add another tablet piece. Shine a flashlight through the bottom of the bottle and turn off the lights!

Slime Experiment- Elmers Glue/ Borax

Use Elmer's gel glue for translucent slime. For a matte slime, use regular Elmer's. Visit Steve Spangler for directions! Click here to see how you can use slime to simulate the movement of a glacier!