Challenge details
Discuss challenge and introduce Four Rules of Inventing
Overview:
Make paper rockets that fit over a plastic drinking straw and are fired by blowing through it
Supplies:
Paper
Masking tape
Plastic drinking straws
Pencils
Scissors
Markers or crayons to decorate the rockets (optional)
Instructions:
Overview:
Demonstrate the Jet-in-a-Bottle and Flaming Tornado. Discuss how each on works and how they relate to rockets
Supplies:
Instructions:
Overview:
Build and launch Stomp Rockets
Supplies:
Instructions:
Clean so it's not a disaster area when the parents arrive
Challenge details or link to wiki
Challenge details
Overview:
Supplies:
Instructions:
Overview:
Supplies:
Foam pipe insulation
Rubber bands
Washers
Zip ties
Cardboard for fins
Instructions:
Clean so it's not a disaster area when the parents arrive
Challenge details or link to wiki
Challenge details
Have each group present their unique solution to the challenge. Discuss some of the learning that took place in each group and what challenges they overcame. Try to keep the better projects, if at all possible, for the Friday “Open House.”
Overview:
I am unsure how far you will get before you will need to dry some of the parts. Read the Estes rockets instructions with the children and help them get to a point that they have to wait to dry items. Once you have reached a place where the rockets need to dry, you can move on to the assorted activities below.
Supplies:
Estes Rockets kits
Instructions:
Read the instructions in the kit.
Overview:
Supplies:
2 liter bottles
bicycle pump
cork (fits snugly into a 2 liter bottle)
ringed flask holder
pitcher of water
Instructions:
Wedge basketball needle into cork so that the end that you attach the pump to is on the thicker end of cork. Place water (about 1/4 of the way full) into 2 liter bottle and place cork in end. Place bottle so that cork is pointing downwards into the ringed flask holder. Attach bycycle tire and start pumping. Make sure that the students are far enough away from the bottle that they do not get hit. Tell the students to pump fast and hard, or else the water will leak out. The pressure will cause the cork to fly off and the bottle to fly up into the sky. Allow each child to do this a couple times.
Clean so it's not a disaster area when the parents arrive
Challenge details or link to wiki
Challenge details
Have each group present their unique solution to the challenge. Discuss some of the learning that took place in each group and what challenges they overcame. Try to keep the better projects, if at all possible, for the Friday “Open House.”
Overview: Again, I am unsure how long it will take until you will need to stop due to drying issues, but augment the Estes Rocket with assorted flight activities.
Supplies:
Estes rockets kits
Instructions:
How do you do the activity? Any additional info.
Overview:
Supplies:
Stuff
More stuff
Instructions:
How do you do the activity? Any additional info.
Clean so it's not a disaster area when the parents arrive
Challenge details or link to wiki
Challenge details
Have each group present their unique solution to the challenge. Discuss some of the learning that took place in each group and what challenges they overcame. Try to keep the better projects, if at all possible, for the Friday “Open House.”
Description: What is Nitrogen? The most abundant gas in the atmosphere, making up 75%. This is the liquid form at -320 degrees Fahrenheit. What is the coldest temperature you have seen in Boise? -10 degrees? Pour some liquid nitrogen into a beaker. Ask the children if they think it is boiling? It sure looks like it is! It is in fact boiling. How could it boil if it so cold? Boiling does not necessarily mean hot. Boiling just means a phase change from a liquid to a gas like we talked about this morning. What is this stuff coming off? Is nitrogen white? No, this is fog. The liquid nitrogen literally freezes the water molecules in the air, turning it to fog.
Ask the students how many balloons they think will fit into the thermos. Put balloons in liquid nitrogen. Ask if it is the same air or different air in the balloons than when you put it in. It is the same air. The molecules condensed. Some of the gas became liquid and even some became solid. Show students that the ball can go through the hoop at room temperature. Place the hoop in (takes a few minutes). The ball will not fit through the super cooled hoop. This is because the molecules moved closer together. Place the banana in (this also takes time). Use the banana as a hammer. Place candy in. The candy should shatter when you drop it, after it has been taken out. Place flower in. The flower will shatter like glass. Place one of each of the three kinds of balls in. The bouncy ball will not bounce as high, the ping pong ball will have no change and the racket ball will shatter. This is because of the way the molecules of each type of rubber/ plastic are arranged as well as the insulation of the air on the inside of the Ping-Pong and racket balls. Place some water in the ice cube tray. Pour liquid nitrogen over the top. Explain that the cracking they hear is the plastic of the ice cube tray shrinking. Let the children pass around the ice when it is made. Next, you will need to tie a 2 liter bottle to a weight of some kind. Fill up a large trashcan with water. Place an inch or so of liquid nitrogen into the 2 liter, cap it off and quickly drop it into the water filled garbage can. This may take a minute to explode. The pressure inside the bottle is approximately 200 psi before it explodes. If you see bubbling, do not approach. The splash zone is quite large, so some children may get wet. Make sure that the children are far enough away. Next, you will make liquid nitrogen ice-cream. Use this as an opportunity to talk about ratios. Explain that the proper ratio for cream to sugar is 4;1. Have the children help measure out the cream. Then ask them how many cups of sugar you will need. Place the sugar in the bowl. Have the children help you mix the sugar and cream to dissolve the sugar. Put some vanilla in. Then slowly add liquid nitrogen and stir. Allow the children to look at the mixture once the fog has settled. Ask the children if we will be eating nitrogen? No, we will not be eating nitrogen as it boils off.
Materials:
Liquid Nitrogen
2 liter bottles
Cream
Sugar
Vanilla
Bowl
Mixing spoon
Eating spoons
Small cups
Balloons
Ball and hoop
Soft candy such as air heads
Large trash can
Access to water via hose
Ball and hoop
Flower
Banana
Piece of wood
Nail
Ice cube tray
Tongs
Gloves
Two identical bouncy balls
Two ping pong balls
Two racket balls (may need to be scored)
Thermos
The students do not have to launch them off if they do not want them. Historically, more than 1/2 of them get lost, so please warn them of this. Tell them where to buy Es