Balsa Rockets
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1.#1 - How would you describe what science is?
I would describe it as how everything works or the study of how everything works and how everything is.
#2 - How would you describe what science is?
I still describe science as the study of how everything works, but I now know that science shouldn't be split up into chem, bio and physics etc. because they all have to do with each other, chemistry has some physics, physics has math. everything comes together. science is literally everything. science is how gravity works, how we live out our days, why we all love pizza and why some people put tinfoil on their heads to defend against aliens controlling their brain.
2. What is a hypothesis, and why should you make one?
A hypothesis is an educated guess. and you should make them because they help you test things and see if they work.
3. Reflect on the week and what happened.
I think this week went well, but I think we NEED to make the rocket much liter.
I would describe it as how everything works or the study of how everything works and how everything is.
#2 - How would you describe what science is?
I still describe science as the study of how everything works, but I now know that science shouldn't be split up into chem, bio and physics etc. because they all have to do with each other, chemistry has some physics, physics has math. everything comes together. science is literally everything. science is how gravity works, how we live out our days, why we all love pizza and why some people put tinfoil on their heads to defend against aliens controlling their brain.
2. What is a hypothesis, and why should you make one?
A hypothesis is an educated guess. and you should make them because they help you test things and see if they work.
3. Reflect on the week and what happened.
I think this week went well, but I think we NEED to make the rocket much liter.
How did you feel on the first day of school compared to how you feel today? What things have contributed to any changes in the way you feel? If you could build a third Balsa rocket, what would you do differently and why? After watching some other students’ films, what themes or common traits have you noticed? Is there something you saw in someone else’s film, that you wish you would have done in yours? What was it? Do you see value in being able to create a film about your work? Why or why not? What are a few things you plan to do differently on your next film and why?
On the first day of school I felt exited to build rockets and launch them, and now I feel exactly the same. I am exited to build and exited to launch. if I could build a third balsa rocket I would use a bigger motor and use a smaller rocket because it will fly higher and faster. I noticed while watching other peoples videos that everyone wanted to have a unique design but its hard to make it fly high with such unique designs. But I wish I made something as cool as what other people made. I see value in creating videos of your work because it shows everything you did leading up to the finish of your project. On my next film i want to have more of what I was doing because it didn't show much of that
On the first day of school I felt exited to build rockets and launch them, and now I feel exactly the same. I am exited to build and exited to launch. if I could build a third balsa rocket I would use a bigger motor and use a smaller rocket because it will fly higher and faster. I noticed while watching other peoples videos that everyone wanted to have a unique design but its hard to make it fly high with such unique designs. But I wish I made something as cool as what other people made. I see value in creating videos of your work because it shows everything you did leading up to the finish of your project. On my next film i want to have more of what I was doing because it didn't show much of that
Hypothesis - what happened when we burned our balloons?
After putting magnesium and citric acid together, then pouring in water to make it react, the atoms electrons were traded between each atom to make each other’s electrons equal and that caused them to react and after it produced gas and expanded the balloon, we held our balloons over fire and then watched them blow up. My hypothesis is that when the fire heated up the air in the balloon, popping it and making the hydrogen catch fire when it released from the balloon. This happened very quickly and I thinks that that is very cool how fast it popped. I think that it’s weird how the fire went down onto the table even though hydrogen is lighter than air. I also think it’s cool how loud it was when the balloon popped. Also how a little bit of magnesium and citric acid can fill up a balloon
ADD ON -
After learning even more about what happened, I learned that when the acid is mixed with magnesium, there is a chemical reaction. hydrogen gas are produced from the reaction between the magnesium and citric acid, this was the full reason the balloon filled up with hydrogen. The water also helped the reaction start and without the water the reaction would not take place.
After putting magnesium and citric acid together, then pouring in water to make it react, the atoms electrons were traded between each atom to make each other’s electrons equal and that caused them to react and after it produced gas and expanded the balloon, we held our balloons over fire and then watched them blow up. My hypothesis is that when the fire heated up the air in the balloon, popping it and making the hydrogen catch fire when it released from the balloon. This happened very quickly and I thinks that that is very cool how fast it popped. I think that it’s weird how the fire went down onto the table even though hydrogen is lighter than air. I also think it’s cool how loud it was when the balloon popped. Also how a little bit of magnesium and citric acid can fill up a balloon
ADD ON -
After learning even more about what happened, I learned that when the acid is mixed with magnesium, there is a chemical reaction. hydrogen gas are produced from the reaction between the magnesium and citric acid, this was the full reason the balloon filled up with hydrogen. The water also helped the reaction start and without the water the reaction would not take place.
What Are The Phases Of Matter?
There are about 6 different phases of matter.
Melting, freezing, condensation, evaporation, sublimation, and deposition
Freezing is when a liquid changes into a solid
Melting is when a solid goes to a liquid
Liquid changing into gas is evaporation
Gas turning into liquid is condensation
Solid to gas is sublimation
Gas turning into solid is deposition.
Pressure + temperature effect the changes of matter a lot, for example if you have water and it is 32 degrees fahrenheit or colder, it is going to freeze into ice. PSI or pounds per square inch, is a type of measurement for telling you how much pressure you are putting on an object or substance.
There are about 6 different phases of matter.
Melting, freezing, condensation, evaporation, sublimation, and deposition
Freezing is when a liquid changes into a solid
Melting is when a solid goes to a liquid
Liquid changing into gas is evaporation
Gas turning into liquid is condensation
Solid to gas is sublimation
Gas turning into solid is deposition.
Pressure + temperature effect the changes of matter a lot, for example if you have water and it is 32 degrees fahrenheit or colder, it is going to freeze into ice. PSI or pounds per square inch, is a type of measurement for telling you how much pressure you are putting on an object or substance.
Phases of matter - Candle Hot Air Balloon
Today in class we learned about air pressure and heat by building a hot air balloon out of candles, balsa wood, plastic bag and a lighter. we first used the balsa wood and made an X shape by connecting the ends of the balsa wood sticks to the sides of the plastic bag. we then melted the wax of the candles bottoms and stuck them to the balsa wood somewhere in the middle of the X. We then lit the candles and waited a bit so that the air within the hot air balloon which we raised so it didn't catch on fire. After we waited the hot air balloon started to rise. It didn't rise very far up but it rose enough to not be touching the ground. This taught me that when air is heated, it wants to rise and because we trapped the heat in the plastic bag, the heat inside the bag rose, causing the bag to start floating.
Phases of matter - RocksToday we learned the ins and outs of earth's insides.
Inner core - Iron + Nickel ( Solid ) Outer core - Iron + Nickel ( Liquid ) Mantle - Mostly Silicates ( SiO3 ) ( Liquid ) ( Thick ) Crust - Silicates ( Solid ) We then made rocks out of "liquid glass", water, and sodium chloride. we put these ingredients into a beaker. after waiting for a bit, crystals started to form. They were also fully formed, solid crystals which I found was cool because we went from 3 liquid ingredients into 1 solid crystal. |
Ocean Acidification
Ocean acidification occurs when carbon from the air, goes into the ocean from factories, cars, Etc. It raises the Ph which is the acidity of the water. We need to cut down on ocean acidification by using less fossil fuels and using more clean energy, because without clean energy. we will become extinct in the near future.
Our oceans create more than 70% of our oxygen, which means that if we have more acidic oceans, we will have dramatic effects on all humans all over the earth. |
Disappearing Ink Lab
Instructions -
Lab
After adding all of these things together and stirring, we had a dark red liquid. we used pipette to put the liquid on paper, and after a bit it started to turn clear. Andrew told us that if you hover a cotton ball of ammonia over the ink after it goes invisible, it will become red again. I find this very cool because you don't even have to ouch it with the ammonia.
- Measure .lg Phenolphthalein into a 125ml Erlenmeyer flask
- Add 10ml of Ethanol and stir it until dissolved
- Add 100ml of Distilled water
Lab
After adding all of these things together and stirring, we had a dark red liquid. we used pipette to put the liquid on paper, and after a bit it started to turn clear. Andrew told us that if you hover a cotton ball of ammonia over the ink after it goes invisible, it will become red again. I find this very cool because you don't even have to ouch it with the ammonia.