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Monday, April 29, 2019

Paper Plane and Water Rocket Experiment


FLIGHT

Aim: To learn about flight and aerodynamics. 

  • In your groups of 3 you will make a paper plane and measure its distance and behaviour.
  • In groups of 3 you will make a water rocket and record its distance and behaviour. 
Image result for flight forces

Definition:

The study of the properties of moving air and the interaction between the air and solid bodies moving through it.


4 forces of flight:


  1.  Gravity
  2.   Thrust 
  3.   Lift
  4.   Drag

Paper Plane:

Material:

1. Paper
2. Large amount of space.

Steps:

1. Fold the paper in half.
2. Create triangle shapes up the top that lines up with the line down the middle.
3. Then do the rest like a normal paper plane and your finished. 

Findings:


Plane Type
Distance
Behaviour
Normal

4m

Curved to the side.
Ailerons

4.2m

It used gravity and pulled to the ground at the end.
Rudder

2.8m 

It dropped as soon as Keyana threw it.

Conclusion:
Today one of our experiments involved paper planes. What we did was create a paper plane then use different strategies each time we measured how far the plane goes. For example we cut out ailerons on the plane, used a paper clip to give it some weight and the other time we tested it with nothing on it. Overall this experiment was pretty fun because we weren't just sitting at our seats the whole time. 




Water Rocket

Material:

1. 
2.  
3. 
4. 
5. 
6. 

Steps:

1. 
2. 
3. 
4. 
5. 
6. 
7. 


Findings:

( Record the distance and the flight behaviour of your rocket.)

Fuel Amount
Test 1
Test 2
Test 3
⅓ water





½ water





¾ water







Conclusion:






Monday, April 8, 2019

Rainbow Paper - Science

Rainbow Paper

Today 7/8Sh and 7/8Ds did a little experiment called rainbow paper, in this blog post i'll show you what it looks like, the materials and the steps.

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

 

 



 

Materials:

  1. Filter Paper

  2. Water Based Felt Pens

  3. Ruler

  4. Clear Cup

  5. Water

 

Process:

Step 1: Rule 1cm on the paper.

Step 2: Draw a slight line on the paper and add two dots using the felt pens.

Step 3: Get the plastic cup and put the paper in there with the dots at the bottom but not touching

the bottom completely.

Step 4: Add a little bit of water.

Step 5: Fold the top of the paper.

Step 6: Wait and see what happens.




Conclusion: What have I learnt from this experiment?

I learnt about different materials and I learnt that the water makes the colour
travel up the paper and not down also at the start we only used the colours
blue and green but in the end it ended up being other colours like pink and
purple. The colours that stood out the most were the blue and green but
couple of minutes into the experiment the main colours were purple and yellow.
Whilst observing the colours I noticed that it smudged a lot. Also if you don't
know what forensics is its the scientific tests or techniques used in connection
with the detection of crime like fingerprints, geneology, DNA and much more.