Science & Art Online Classes
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Dear Students and Parents,
We Invite you to join our Science & Art Zoom meeting Saturday May 2nd at 10:00am. If you want to join, Please be in the Zoom "waiting room" at 10:00. We hope to see you online. Mr. John ZOOM NOTES: Students can join the online meeting with a Laptop, Tablet or Phone But We Highly Recomend a Laptop or Tablet. Note If you use a laptop that is it. If you use a Tablet or iPad (or phone ): you will need to download a small APP from the Apple Store or Google Play Store (the email link should ask you to do that automatically) Once you have entered the Zoom Meeting you will be in a "Waiting Room". We have to Admit students individually. Once you are Admitted: Turn On Your Audio (ussually at the bottom right of the Zoom Screen) You should also Turn On your Video as it makes the class much more engaging and fun for students. |
Example work area above
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List of Materials needed for Future Classes
FYI: These online classes will not count as a part of your regular Science Art Classes. They will be extra classes (free of charge) and are our way of trying to help out durring this pandemic as well as our way of saying THANK YOU for suporting us.
FYI: These online classes will not count as a part of your regular Science Art Classes. They will be extra classes (free of charge) and are our way of trying to help out durring this pandemic as well as our way of saying THANK YOU for suporting us.
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Make a Magic Wallet
(A Paper Craft Project) Materials Needed:
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Home Made Play Dough
(Double Recipe) Materials:
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Instructions:*Junior Scientists may need responsible adult assistant to help!
- Dissolve the salt (1 cup) in warm/hot water (2 cups).
- Pour all ingredients into a large bowl.
- Stir constantly over medium heat until a ball forms by pulling away from the sides.
- Knead the dough mixture until the texture matches PlayDough (sprinkle dough with flour if needed).
- Store in plastic container. Should last for at least 3 months.
Soap Powered Boat
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Things You Will Need
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Instructions
If your boat is lightweight (not too many decorations), it should float and move forward quickly when you put the first few drops of soap into the notch.
Explore
Do you have a hypothesis on why the boat moves?
After the boat has stopped, repeat the experiment a few more times in the same pool of water and see what happens.
Are you able to prove or disprove your hypothesis?
Why
The boat moves because the soap alters the water’s Surface Tension.
Water molecules (the tiny little pieces of water) tend to stick to one another. The way they want to stick together is called Cohesion.
On the surface of the water, water molecules are more attracted to other water molecules than to the air resulting in Surface Tension.
In this experiment, the “boat” can float on water due to this surface tension.
Water has high surface tension, which means the molecules are pulling each other on the surface very strongly.
Soap (a Surfactant) breaks down water’s surface tension by giving water molecules something else to be attracted to.
When a drop of soap is placed in the notch, the surface tension of the water in that small area is reduced.
The high surface tension in the rest of the surface of the water pulls the water away from the area with low surface tension.
Thie boat moves forwar but, after repeating the experiment several times, the boat stops moving despite adding more soap.
By then, the surface tension in the entire pool of water has been broken.
When the surface tension difference between the front and the back of the boat disappears, the water will not be pulled and the boat will not move.
How can you make the Boat move forward again?
- Cut the styrofoam plate or cardboard into the shape of a boat.
- At the end of the boat, cut a small notch.
- (Optional) Decorate the boat how you want.
- Fill the container or the tray with a thin layer of water.
- Place the boat in the water.
- Using the toothpick or pencil, put a drop of liquid soap into the notch at the end of the boat.
- Watch what happens to your boat!
If your boat is lightweight (not too many decorations), it should float and move forward quickly when you put the first few drops of soap into the notch.
Explore
Do you have a hypothesis on why the boat moves?
After the boat has stopped, repeat the experiment a few more times in the same pool of water and see what happens.
Are you able to prove or disprove your hypothesis?
Why
The boat moves because the soap alters the water’s Surface Tension.
Water molecules (the tiny little pieces of water) tend to stick to one another. The way they want to stick together is called Cohesion.
On the surface of the water, water molecules are more attracted to other water molecules than to the air resulting in Surface Tension.
In this experiment, the “boat” can float on water due to this surface tension.
Water has high surface tension, which means the molecules are pulling each other on the surface very strongly.
Soap (a Surfactant) breaks down water’s surface tension by giving water molecules something else to be attracted to.
When a drop of soap is placed in the notch, the surface tension of the water in that small area is reduced.
The high surface tension in the rest of the surface of the water pulls the water away from the area with low surface tension.
Thie boat moves forwar but, after repeating the experiment several times, the boat stops moving despite adding more soap.
By then, the surface tension in the entire pool of water has been broken.
When the surface tension difference between the front and the back of the boat disappears, the water will not be pulled and the boat will not move.
How can you make the Boat move forward again?