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Summ Scientist Gl Scout Volume 1 May Edition Dear Girl Scout, Thanks for wanting to keep your brain fresh and active this summer! We’re going to try cool experiments that will be interesting, will make you smarter, and will definitely create something to show your friends or family. Trying experiments with things you find around your house is a good way to learn what happens when you mix things together. It’s science in action! Because you’re reading this I know you’re a G.I.R.L. (Go-get- ter , Innovator , Risk-taker , Leader)™—You’re ready to try new things and find solutions, you’re not afraid of failing and trying again, and you know how to get the job done. So let’s do this! Look at the experiments and the lists of what you’ll need to decide what to try first. Have an adult or older friend help you gather your supplies and then get ready to create. Congratula- tions scientist, you’re on your way! Your friend, The Girl Scout Summer Scientist Guide

Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

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Page 1: Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

Summer ScientistGirl Scout

Volume 1May Edition

Dear Girl Scout,

Thanks for wanting to keep your brain fresh and active this summer! We’re going to try cool experiments that will be interesting, will make you smarter, and will definitely create something to show your friends or family. Trying experiments with things you find around your house is a good way to learn what happens when you mix things together. It’s science in action!

Because you’re reading this I know you’re a G.I.R.L. (Go-get-ter, Innovator, Risk-taker, Leader)™—You’re ready to try new things and find solutions, you’re not afraid of failing and trying again, and you know how to get the job done. So let’s do this!

Look at the experiments and the lists of what you’ll need to decide what to try first. Have an adult or older friend help you gather your supplies and then get ready to create. Congratula-tions scientist, you’re on your way!

Your friend,The Girl Scout Summer Scientist Guide

Page 2: Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

What you’ll need:• 12 gummy bears• 6 small cups or bowls• Water, salt water, vinegar, milk and water with baking soda

What to do:1. Take 6 gummy bears and set aside for to compare to the

ones you are experimenting on. (These are called controls.)2. Pour the different types of liquids into each bowl and place

one gummy bear in each bowl. What do you think will happen to each bear?

3. Let the bears soak for about twelve hours. 4. Compare the bears to the control bears. Which bears

changed the most? Did the bears dissolve?

You are testing two different concepts, solubility and osmosis. Water is a solvent. A solvent is a liquid or gas that

dissolves a solid or a liquid resulting in a solution. Most people would assume that gummies would dissolve in water. The gummies are absorbing the water through osmosis. Osmosis is when something moves from a

crowded place to a less crowded place through a membrane. The water and other liquids moved into the gummies to equalize them. This caused the gummies to

grow. The one in the vinegar grew but also dissolved a little due to the acidity in the vinegar.

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Gummy Bear

What’s going

on here?

Write your

hypothesis and

conclusion here.

Science

Page 3: Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

What you’ll need:• Two raw eggs• A container with a cover • White vinegar• Big spoon corn syrup• Water

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What to do:1. Place your eggs in a container large enough for them not to touch.2. Pour enough white vinegar over your eggs to cover them. Do you see bubbles starting to form?3. Cover your eggs and place them in the refrigerator for 24 hours.4. Scoop them out of the container with a big spoon.5. Carefully pour out your vinegar and place the eggs back in the container with more vinegar for another

24 hours.6. Scoop out your eggs and rinse them off? What happened to your eggshell?7. Next try bouncing your egg from a low height. Start with a couple of inches and get higher with each

bounce. How high can you get before the egg splatters?8. Take your remaining egg and place it back in the empty container. 9. Cover it with corn syrup and place it in the refrigerator for 24 more hours. What happened to your egg?10. Not happy with your shell-less egg now? Put your egg back in the empty container.11. Cover the egg with water and place it back in the water for 24 more hours.

The vinegar contains an acid that breaks apart the egg shell leaving the egg intact. This leaves you with a shell-less egg. The

shell-less egg has a membrane that is selectively permeable. This means it lets some things through but blocks others.

Water moves through the membrane easily but larger molecules like the sugar in the

corn syrup are blocked. The egg has more water in it than the corn syrup so it tries to equalize the water content by allowing the water to escape the egg through (you

guessed it) osmosis. This causes the egg to shrink. When you put the egg back in water it swells back up using the same process

only in reverse.

What’s going

on here?

Egg-xtraScience

Write your

hypothesis

here.

Don’t forget to share your pictures from your Summer Scientist experiments with us on social media and tag Girl Scouts of Southern Alabama!

Page 4: Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

Sinking SodaWhat you’ll need:• A bathtub full of water, pool or large bucket of water• Different types of soda (diet and regular) in a cans

What to do:1. Place the regular soda in your water container.

Be sure there isn’t an air bubble underneath it. Does it sink or float?

2. Place the diet soda in the water. Does it sink or float?

3. Try it with many different types of soda.

What do you notice?

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Write or draw a

picture of what

happened below.

The cans of regular soda sink because they have a heavier mass than the cans of diet soda. What’s the difference? Sugar. The volume (or amount of space that an object takes up) is the same for all the cans so the only difference is the mass (how much stuff is in it) of the can. The diet soda doesn’t have the same mass as the can of regular soda because of the mass added by the additional sugar. The cans of each type will float or sink a little differently based on the amount of sugar in each can. Check it out in the ingredients on the side of the can.

What’s going

on here?

Page 5: Girl Scout Summer Scientist...Chewing Gum Challenge 5 What you’ll need: • Pack of chewing gum • Pack of bubble gum • Ruler What to do: 1. Chew up a piece of bubble gum. 2

Chewing Gum Challenge

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What you’ll need:• Pack of chewing gum• Pack of bubble gum• Ruler

What to do:1. Chew up a piece of bubble gum. 2. Try blowing a bubble. What is the biggest

bubble you can blow? Can you measure it with a ruler?

3. Now chew up a piece of chewing gum.4. Try blowing a bubble. What is the biggest

bubble you can blow? Can you measure it with a ruler?

The difference is that chewing gum base is a natural gum called chicle. It comes from the sap of a tree called a sopapilla tree. This is why it won’t blow a large bubble. Bubble gum on the other hand is a mix of polymers and starches. It is designed to blow bubbles and made in a laboratory.

What’s going

on here?

Write or draw a

picture of what

happened below.