I am in year nine and i have a major science projects asking me to make a working model. That's it. Any Ideas!

Question

it can be on anything but i get marks for creativity and originallity. I also can't buy commercial kits such as lego or electric kits. Some ecamples are a jack in the box and merry-go-round. if anyone has any suggestions PLEASE tell me! and if you can please explain the scientific principles behind it. :) c2

Answer 1

Ok,  how  about  a  small windmill>> then use  a  fan to show  how it  can  pump water or generate  electricty.

or  a  remote  control small robot  from  a  remote  car  engine.I  saw  one  with  a  small video camea used  for  crime  watch at  a  stake  ot,  real cool.    good luck  *mamatx

Answer 2

One of my favorites is a mousetrap-powered car.  You can get ideas on how to build them off the web (just search on mousetrap car), or email me if you have questions.  I am a former science teacher and have assigned these as projects for my classes.

You can also get other ideas on science project web sites.  A few are below.

Answer 3

Well there's millions of things you can do, depending on their diffficulty. They actually have tonnes of books for occasions such as these, or for those who have simply nothing to do. They are also many ways in the internet, so I have no idea why you are asking a group of strangers. Anyway hmmn let see, I actually did do a lot of these things but I have forgotten them all. The ides I have are kinda complicated to explain...

You know how a doorbells works right?, well its kinda the same principle in which you can display as a test of steady hands... Create a loop of wires that are connected to a buzzer or a light. A roller coaster kinda loop. d**n this is hard to explain. Theres a little circle around this course and if it touches the roller coaster then the light comes on...see where I am getting at ..that circle is also connected to the buzzer and it completes the circuit when it touches the roller coaster. So the person who actually manages to complete the course woithout the the buzzer buzzing or the light lighting up, get a million bucks ....or some candy. Well its complicated to explain how the whole things works, but its simple and if you want to know more...email me.

Good Regards

John

Answer 4

Here is instructions to build a Geyser:

http://www.wyojones.com/science_fair_pro...

Solar Energy Science Projects:

http://www.jc-solarhomes.com/projects.ht...

Easy to Demonstrate Rocket Launch

Materials used: Film canisters, sodium bicarbonate (baking soda) and acetic acid (Vinegar).

Instructions:

First of all, chop off the lid of the film canister and pack it completely with baking soda.

Slowly pour a small quantity (about two teaspoons) of vinegar into the canister.

Now gently place the lid on the film canister and close.

Quickly turn the canister upside-down, place it on the ground, and move away.

Within a matter of few seconds, the canister will shoot up into the air.

In case it happens that your rocket fizzles, then use a canister with a tighter-fitting lid. Demonstrate this project in an open space. Be quick to move away from the canister, as soon as you put the lid since it can blow quickly.

Easy to Make Barometer

Materials: A measuring glass or an empty container, an empty soda bottle and water.

Instructions:

Fill a glass or a container with water and add some colored dye into the water.

Flip an empty soda bottle upside down into the glass or container. (Make sure you use a bottle that fits snugly in the container so that the mouth of the bottle doesn’t touch the base of the cup.)

Now make sure that the water level extends into the neck of the bottle.

Mark a line on the cup, which will help indicate the water level within the bottle.

Once you have set this apparatus, re-examine the bottle in a few days.

Since the water extended into the bottle acts as a plug, the amount of air within the bottle cannot change. This quantity of air trapped into the bottle serves as an indicator of the air pressure. When the air pressure increases, the pressure on the water surface is greater and hence the water is forced up into the bottle. This is the basic principle of the barometer that can be simulated in this simple –to-construct barometer that will make for a great science fair project.

Have fun and hope you learn something new!

Answer 5

make a little car out of legos

find a lttle fan.

tie it to the back.

turn it on and watch the little car go!!!!

and no i can't explain the principles.

Answer 6

volcano and lava(its a classic)

maybe you can make a motor with nails, wires, and magnet(s)

Answer 7

do your own homework.... lol... jk.... i had to do a project like this and i made a water thing on the effects of water runoff and  stuff.... the water would run into the pan and then like go up a tube.... idk how to explain it.............

Answer 8

I have some ideas but it would be a lot easier if you had a subject or topic to use as a frame of reference.

Answer 9

hi there,

     Science is my favorite cup of tea. You see there are numerous projects that you can try out. Here is one that came to my mind.

Project:

Demonstration of the Relation between force and area:

Stuff you need:

1) Lot of balloons.

2) Lot of pins.

3) A thermocole or a soft cardboard.

what to do:

first inflate some balloons and keep them aside. Then take a number of pins and insert them through the thermocole or cardboard in a definite pattern ( an array) so that all the pins are very close to each other. Make sure you use at least 50 pins. The higher the number the better. Keep the pins closer together or it wont work. now take a balloon and gently poke it with a single pin. You definitely know what happens!!!. It will burst.

Now take the card board with pins and gently press it on the balloon. You will be surprised to see that the balloon will not burst. This will only work if you kept the pins as close as possible.

Principle:

   What the experiment proves is that force applied to a smaller area has greater pressure. This is the case when to poke the balloon with a single pin and it burst because the skin of the balloon is ruptured. And when the same force is applied to a larger area the pressure is reduced. This the second case where you poke it with a number of pins.

Pressure = Force / Area

Hope it helps. Mail me if you do not get any part of it.