Home Chemistry - Aerodynamics

Aim: To learn about flight and aerodynamics.

Definition of Aerodynamics:

Aerodynamics is the way air moves around things.
The rule of Aerodynamics explains how an airplane is able to fly.
Anything that moves through air reacts to Aerodynamics.
A rocket blasting off the launch pad and a kite in the sky reacts to aerodynamics.

4 forces of flight:

The four forces are lift, thrust, drag, and Weight (gravity).

• Weight is the force of gravity. It acts in a downward direction -
• towards the center of the Earth
• Lift is the force that acts at a right angle to the direction of motion through the air.
• Thrust is the force that propels a flying machine in the direction of motion.
• Engines produces thrust.
• Drag is the force that acts opposite to the direction of motion.

Paper Plane:

Material:

1. Paper

2. Scissors

Steps:

1. Take your paper and fold it in half

2. Then make a house shape and fold the two ends onto the line

3. And fold it like a normal plane and your done

Findings:


Plane Type:

Distance
Behaviour
Normal

Plane type	Distance	Behavior
Normal	3.9	It went straight
Ailerons	1m	Curved to the left
Paper clip	5	Straight

Conclusion:

For this experiment I learnt what Aerodynamics means, and I also learnt what the 4 forces are.
We also found out that the normal paper plane flew 3.9m straight.
The Ailerons Paper Plane flew 1 m straight but then it curved to the left.
Also when using the paper clip it flew 5 m Straight that it even hit the door!
Here are some information about the 4 forces that I have learnt about today.
The four forces are lift, thrust, drag and Weight (Gravity).
Thrust directs the plane to where it is heading, for example the plane is to
turn right or left then the thrust will direct it to the directed ways.
Weight is the force of Gravity. It acts in a downwards direction. For example if you pass
the ball to someone and it goes upwards then It will come back down, that is Gravity.
Lift is the force that acts at a right angle to the direction of motion through the air.
For example Lift helps the plane stay in the air.
Drag is the force that acts opposite to the direction of motion
I've enjoyed doing this experiment it has taught new interesting things that I've never knew before about. 

Rainbow Paper Experiment - Home Chemistry

Rainbow Paper

 

Aim: To separate colours by using the process of chromatography.

 

 

Materials:

1. Chromatography Filter Paper

2. Plastic cup

3. Water based felt paper

4. Ruler

5. Pencil for marking

 

Process:

Step 1:  Firstly we selected a group containing 3 member suitable for this experiment. We then had to get a Chromatography Filter Paper, Ruler, Water based felt pen and a Pencil

Step 2:  Secondly, On the Chromatography Filter paper we had to rule a line  from the bottom of the paper 1cm going up.

Step 3:  After that we had to put 2 dots on the pencil marking, my group and I we used Green

and Purple coloured Water Based Felt Paper.

Step 4: Then we had to get a clear plastic cup and place the piece of Chromatography Filter Paper, with the paper the side that has the markings and dots has to face downwards or into the bottom of the plastic cup, but the rest of the paper hanging out of the Plastic Cup you can gently fold that on the outside of the Plastic Cup.

Step 5: After that we have to give or show one of the teachers our Plastic cups with our Chromatography paper and then the teacher will pour a small amount of water into your Plastic Cup.

Step 6: Finally, after the water is inside the Plastic Cup, then you will see a change of colours showing up on the Chromatography Filter Paper, On our paper we noticed that we’ve made two different colours which were Pink and Blue, also we noticed that the colours have travelled.

Conclusion: What have I learnt from this experiment?

Today I learnt that colours can travel across paper at different speeds. I also learnt what Forensics is, Forensics is a way of solving criminal cases, such as Fingerprints, and Footprint, DNA, Appearance, and Forgery. Our group and I we had to redo our experiment because one our first attempt I accidentally messed with the Chromatography Filter Paper which made a change to the results that we were expecting. On our second attempt our experiment turned out well, because we knew what we could do better and we fixed it.

This is a photo of our experiment on our first attempt.

This is our second attempt at our experiment. `