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Showing posts with label experiment. Show all posts
Showing posts with label experiment. Show all posts

Monday, March 29, 2021

Making salts II

 The aim for the experiment is to produce copper sulfate salt by reacting copper oxide with acid

The equipment I needed for the experiment was Copper oxide powder, 0.5 mole of dilute, sulfuric acid, 50 mL of measuring cylinder, two 200 mL beakers, Bunsen burner, tripod, gauze mat, funnel, filter paper, thermometer, spatula and a stirring rod

Method 

1. Add 20 mL of sulfuric acid to a 100 mL beaker. Heat the acid until it reaches 70'C and then turn off the beaker 

2. Once heated, use a spatula to add pea-sized portions of copper oxide to the beaker. Stir the mixture for 30 seconds

3. Repeat step 2 until no more will dissolve. Allow the beaker to cool

4. Fold the filter paper and place it in the funnel. Place the filter funnel into the second beaker.

5. Make sure the beaker is cool enough to hold at the top. The contents should still be hot. You may need your teacher to complete this step.

6. Gently swirl the contents of the beaker to mix, then pour into the filter paper in the funnel. Allow to filter though

7.Rinse the beaker you used to heat the mixture previously, and place it back on top of your tripod filled with 50-60 mL of water.

8. Place the evaporating basin on top of the beaker and carefully pour some of the solution from the beaker into the evaporating basin

9.Gently heat the beaker until the solution starts evaporating basin has reduced by half

10. Leave the evaporating basin to cool. Once cool, move the evaporating basin to a warm place where it will not be disrupted (i.e a window-sill) and observe over the next dew days.Blue copper sulfate crystals should form

Observations: I think what would happen during the experiment is that I will mess up.


Tuesday, November 3, 2020

heart questions

 What have we been learning about?

We have been learning about the circulatory system


Why are we dissecting a pigs heart?

So we can learn what the heart looks like


What are the parts of the heart? Did you see them?
Atrium yes
Ventricle yes
Valve yes
Vein no
Artery no

Did you enjoy the dissection? Why/why not?
No. Because it looked gross and smelled gross

Tuesday, October 13, 2020

Blood

LLinnk

hand

I did hand with my friend we had fun making the hand 


Friday, October 25, 2019

Hurumanu - Renewable Energy



Hurumanu - Renewable Energy

Aim: To make a solar-powered oven.

Materials: 
  1. Sellotape
  2. glad-wrap
  3. tin foil 
  4. scissors 
  5. black plastic
  6. pizza box
  7. straw
  8. plate 
  9. marshmallow
  10. cookie
Steps: 1 cut out the flap on the lid of the pizza box so that is 5cm around the edge  
2 Sellotape some tinfoil on the inside of the flap   
3 Sellotape some glad-wrap so that the hole you have cut on the pizza box lid is covered over with glad-wrap  
4 put a piece of black plastic on the bottom of the inside of the pizza box  
5 Make a paper square that fits inside the pizza box and lays around the edge  
6 Put a marshmallow on top of a square
7Put it in the sun to cook

Time
Temperature
0

15

30

45


Conclusion





Aim: To make a presentation that investigates different renewable energy's.

Section 1: Title Page

Make a title page that incorporates all renewable energy 's Hydro, Solar, Wind and Wave.

Section 2: Definitions

Define and provide a picture of each energy type.
  1. Hydro Energy
  2. Solar Energy
  3. Wind Energy 
  4. Wave Energy
Section 3; Investigate each of the 4 Energy Types.
(Hydro, Solar, Wind, Wave ) 


  1. Type:
  2. Is it used in NZ?
  3. Other Countries that use it?
  4. How is it used to generate electricity?
  5. Draw and label a diagram of the main parts of the electricity generator? This can be done on paper and uploaded or on a drawing program on your device. I do not want any Internet images or pictures. They must be hand-drawn using a ruler and labelled.


Section 4: Renewable Energy in the future.

List 10 ways that renewable energy will be used in the future to replace our current activities.

Tuesday, September 10, 2019

Hurumanu - Solar Energy


Aim: To find out which colour attracts the suns heat.

Hypothesis: I think the black cup will be the hottest because black is an absorbing colour. 

Materials:

  1.  cup
  2.  thermometer
  3.  Chromebook
  4.  timer
  5.  paper
  6. tinfoil

Steps

  1.   get someone in your group to get the ingredients.
  2.  get the experiment ready.
  3.  wait for the teacher to put in the water and give you the thermometer.
  4. put the light on 
  5. put the timer on
  6. when the timer goes off put your results in the finding's box below

Findings:





Time 
Cup 1
White
Cup 2
Black
Cup 3
Tinfoil
0
16'c16'c16'c
15
18'c20'c19'c
30
18'c24'c21'c
45
19'c27'c23'c

Conclusion

I was right the black cup was the hottest because I know that black is a heat-absorbing colour







Activity:

In pairs rate the livability of coal vs solar energy.

Comparing Coal energy with Solar energy ( Rate; 1 = poor to 10 = great)

Factor
Solar
Coal
Livability


Sustainability


Accessibility


Cost


Your choice...



Solar Sharing ( from 2040)

Friday, September 6, 2019

hurumanu-greenhouse affect experiment

AIM: TO LOOK AT CLIMATE CHANGE AND THE GREENHOUSE EFFECT

THE GREENHOUSE GASES EXPLAINED.


The Greenhouse Effect experiment

Materials

  1. 1 plastic bottle
  2. 1 Teaspoon Baking Soda and Citric Acid
  3. BVV 1 heat lamp
  4. 1 Thermometer
  5. 100 ml of water
  6. 1 rubber bung

Procedure;
1 come and collect all the materials from Mr palmers.
2 Setting up the lights, bottles thermometers and bungs. 
3 Mr Palmer adds baking soda mix along with 100ml of water.
4 Wait minutes and start recording the temperature.

Variables:
All water added to the bottles were from the classroom tap




Findings: The Greenhouse Effect Data 



Minutes
Bottle 1: Water 
Bottle 2: CO2 Gas
018͑'c 18'c
522'c25'c
1025'c25'c
15no recordingno recording
20no recordingno recording
25no recordingno recording
30no recordingno recording
35no recordingno recording
4030'c41'c
45no recordingno recording
50no recordingno recording


Conclusion: the normal water bottle did no heat as much as the bottle with CO2.