Voltage rule

In series, the voltage is split between components.

In parallel, the voltage is the same everywhere.

Current rule 

The opposite, being that series is the same and parallel splits.

Current, a flow of electricity that results from the ordered directional movement of electrically charged particles.

Voltage, an electromotive force or potential difference expressed in volts.

Resistance, the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. By Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.

Circuits

 

Switch - Closes the circuit

Battery - Power

Resistor - Slows the voltage down

Light bulb - Takes voltage to heat up wire to make light from hotwire

 

Parallel circuit:

Different branches

 

Series circuit:

Same branch

The Cay review

The cay is a book written in 1969 by Theodore Taylor about a group of people trying to flee to America from the island of Willemstad during WW2 however they are found by a german u-boat and their ship begins to sink only two people escape an old 70 something man named timothy and a young 12-year-old boy named Phillip together that they find themselves in a small raft drifting somewhere in the Caribbean eventually they drift to a small cay filled with langosta and palm trees. 

Overall I would rate this as a fairly good book with some good twists as well as making you wonder if they ever will get off the cay but the book was rather short at only 122 pages.

Maori language week sign

Maori language week

 

Do you know any safety signs that are bilingual?

Eye

 Aim:

To dissect an eye 

Equipment:

Eye

Scalpel 

Scissors 

Method:

1. Get eye

2. Cut off fat

3. Cut out the iris pupil and lens  

4. Drain the vitreous humorous

5. Turn the eye inside out 

6. Cut into 3 equal parts 

Parts:

Sclera: white protective layer

cornea: sclera but at the front

Iris: color

pupil: lets in light

lens: light

retina: the inner layer 

tapetum lucidum: helps animals see in the dark

I enjoyed the dissection aside from the smell when we turned the eye inside out we saw the tapetum lucidum and had to move the retina to be able to fully see it

Cay

 A cay is a small island with a low bank.

It would be difficult for someone to live on a cay due to the low amount of food, animals and clean drinking water the small amount of food that you might find on a cay are small things like crabs, coconuts and other fruit and the reason for such little clean water is due to the cay being surrounded by seawater and the only way to get clean water is from the rain which on a small island in the carribian is a little amount roughly 200 mm a year compared to the average rain fall of New Zealand 600-1600

Pontoon Bridge

 A pontoon bridge is a type of portable bridge often build upon small canoes used to cross small rivers the bridges were originally used in ancient China simply to get large groups of people. Simple versions of the bridge are made by tying pieces of wood to some boats and are also reusable thanks to their mobility and ability to be taken apart