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1.effective
2.safe

Its effective because it’s not like a rower and it doesn’t get tired.

It’s safe because it is not likely to explode or break.

Scientific principles: motion , force, push, drag ,load

Extra: simple machines: pulley,inclined plane (maybe),wheel and axle, will all be used in our project

By Sasha, Senan and Guy

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They could add a weather machine and a system to help them if there in a storm or another bad weather when at sea so then they can be

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We are making a phone.
Safe: we could use the weather app to see if its safe ahead.
Effective: we could contact Zhu di to tell him our progress/problems.
Fun/comfortable: we could play games anytime!
Scientific principles: sound, electricity, wires, information.
Main things needed for an iPhone: silicon chips, speakers, Transistors and gorilla glass

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A brand new ardin island
Motion Force
Lever

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They should add wheel and axle on the cannon ball so they could bring the cannon ball somewhere else
Scientific purposes
Defence
Attack

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Hanyun and Nicky

Submarine

For going underwater and other

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There should be a pulley for opening doors for places
Scientific  purposes
Entertain
Easy

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1. Safe, effective and fun
2.  Effort, force, potential energy,gravity
Safe-It helps 郑和s men carry the heavy things because instead of a seat it is a big box.  Effective- because the treasurers can get onto the boat more quickly. Fun-and its fun going down the zip line.

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Electric boat house with a security system 

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Electric boat house with a security system 

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Mya Rainn, Abigail, and Jia yi

Safe & Effective

Simple machines:
Pulley
Lever
Inclined plane

Scientific principles:
Motion
Force
Direction
Angles
Speed
Screws

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Stronger boat   Siyu ren 4-8

safe
Effective

Different merterial
Boat shape

So the boat won't brake down。

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submarine

Efficient
Safe

Resources
1.plastic/steel
2.glass
3.hard paper

Timeline:
Day 1.Get materials
Day 2.start to create shell
Day 3. Finish shell
Day 4. Finish shell
Day 5. Thicken shell
Day 6. Thicken shell
Day 7. Start glass
Day 8. Finish glass
Day 9. Add details

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1. It can save people from drowning by floating on water.
2. The scientific principle is floating.
Ginger, Peta, Maya

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Bathroom 🚽 💩
For: Privacy
Lever

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1.Emergency speed boat with weapons for safety.--safe. if getting attacked by Enemies. scientific principles: wheel & axle for the handle, gears in the boat, engine to make the boat move.

2.Casino to have fun.--enjoy. so you get rich only if you are professional at gambling.scientific principles: force for billards because you need to push the stick thing inside the gambling machines gears.

3.

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Canon and Bomb 💣
Help Zheng He: Safety
SF (Scientific Principes):Force
Photo from:Stockfresh

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Boat
A boat has scientific principles it is safe, comfortable,Enjoyable,fun
Float
Wind and sails

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A car 🚘 :
In case they need to run away from some people on land
A car 🚘:
Effective
Fun
Safe

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Large screen monitors can detect storms, pirates, (safe ) undersea creatures alert (effective )and you can play video games and listen to music and watch movies (fun)

Scientific principles:

Satellite connection, Wifi, pixels, display, sound

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1.effective
2.safe

Its effective because it’s not like a rower and it doesn’t get tired.

It’s safe because it is not likely to explode or break.

Scientific principles: motion , force, push, drag ,load

Extra: simple machines: pulley,inclined plane (maybe),wheel and axle, will all be used in our project

By Sasha, Senan and Guy

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Entertainment System
For enjoyment, and comfort
Helps Zheng He’s Boredom.
Scientific Principles:
Uses the following:
Gravity
Angle
Motion
Force
*and of course, others*
Simple Machines:
Uses inclined planes, possibly wheel and axle, pulley or lever

Portable, Features: LED Display, Strong Speakers for Music, Movies, TV HD 90 inch screen.n

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Bow and arrow 🏹 :
For enjoyment and defence
Scientific principles:
Aim
Gravity
Velocity
Speed
Strength
Kinetic energy
Motion

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Zoe,Victoria,Dasha,a new boat that has scientific principles in it.

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Zoe,Victoria,Dasha,a new boat that has scientific principles in it.

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-safe
-effective
-fun!

Scientific Principles:
Motion
Gravity
Angle
Force
Friction

Simple machines:
Wheel and axle
Pulley
Inclined plane
Lever

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It can be effective for long journey with fast speed

The scientific principles of an nuclear reactor is
Effort
Force
Gravity
Heat

The only way to shield your self is put 10 inch walls that would weigh
50 tons
but it is not safe at ALL!!!
But there is to much scientific principles that youyou  and the Jeff Jeff killer can explain