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Wednesday, November 4, 2020

electricity

 6 definitions

static electricity:A build up of electrical charges on an object

current electricity:a  flow of electric charge.

electrical charge:electrical particles that are negatively charge

circuit:a  system that provides a pathway for electrical current to flow through

cell:Supplies energy to circuit, by pushing current from the positive to negative end

voltmeter:A device used to measure voltage, or electrical potential energy difference

examples of static electricity

1.hair stand when i brush my air

2.shocked when i put off my sweater

3.touching metal door

4.holding hand with friend

How does the Van der Graaff machine work?


it makes static electricity


What was one of the experiments they did with the machine?


put their hands on it 


Describe what happened, what did you see?


their hair was stood


Why did you see this happen?


because of static electricity




Monday, November 2, 2020

eye dissecton

 Aim: To dissect a cow's eye and look at the different parts of the eye

equipment:

1. cow's eye

2. scissors 

3. dissecting tray

4. gloves

method:

1. set up the tray with newspaper on the desk,scissor and tweezers in the tray.

2. put on a rubber glove

3. remove excess fat meat from around eyeball before dissect it

4. use scissor to cut the cornea.once the cornea is broken, clear liquid will leak in the tray

5. remove the lens from iris

6. cut the eye in half.











leaderships

                                    

energy:

  Definition:stored in an object,the ability to move something.

Different kind of energy-

light energy:the energy of the electromagnetic waves. Found in Microwaves, x-rays, and visible light.

heat energy:caused by the movement of particles. Found in all hot objects.

sound energy:energy produced by vibrating objects. Examples are speech, ultrasound and music.

chemical potential energy:Energy stored in the bonds between particles. Found in substances like petrol and food.

Electrical energy:the movement of electrically charge particles. Found in wires, generators and lighting.

Gravitational potential energy:Energy stored in objects due to their height above the ground.

Kinetic energy:Energy due to the motion of an object. Ex. Moving cars, running, swimming.

Elastic Potential energy:Energy stored in stretched or squashed objects. Examples are springs and rubber bands.










instrument involve

 1.what have you studied in music this term?

-i studied piano and ukulele.

2.which instrument did you enjoyed?

-i enjoyed piano because i didn't play it ever.

3.Which instrument did you find the most challenging and why?

-guitar.because it is to big for me

4.Which instrument are you going to focus on for the rest of the term and why? What would you like to achieve?

piano.because it is still hard to me.


mac and cheese

 i used pasta,onion,salt,ham,milk,cheese,butter,flour and water.

  • Bring a large pot of lightly salted water to a boil. Cook elbow macaroni in the boiling water during 10min.melt butter in a pan over medium heat; stir in flour and onion.pour milk into roux.mix the mixture untill it bubbling and smoothly.fold macaroni into the mixture and add some cheese and ham.

potato frittata

 we need potato,black pepper,vegetables,salt,eggs,milk and some cheese for potato fritta ta.

Heat olive oil in a medium frying pan over medium heat. Place potatoes in the pan, cover and cook about 10 minutes until tender but firm.Mix in spinach, shallots or white onion and garlic. Season with salt and pepper. Continue cooking 1 to 2 minutes, until spinach is wilted.In a medium bowl, beat together eggs and milk. Pour into the pan over the vegetables.Sprinkle with Cheddar cheese. Reduce heat to low, cover, and cook for 5 to 7 minutes or until eggs are firm.