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Magic Ketchup Experiment

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 You can make a pack of ketchup float and sink at your command while it's sealed inside a bottle!

 you will need

        A 1 liter plastic bottle
        Ketchup pack from a fast food restaurant
        Salt (using Kosher salt helps keep the water from becoming foggy) 

what to do

Remove any labels from the bottle and fill it all the way to the top with water.

1. Add a ketchup pack to the bottle.

2. If the ketchup floats, you're all set - go to step 4. If the ketchup sinks in the bottle, go to step 5.

3. For the floating ketchup pack simply screw the cap on the bottle and squeeze the sides of the bottle hard. If the ketchup sinks when you squeeze it, and floats when you release it, congratulations, you're ready to show it off. If it does not sink when you squeeze it, try a different kind of ketchup pack or try a mustard or soy sauce pack.

4. If the ketchup pack sinks, add about 3 tablespoons (45 ml) of salt to the bottle. Cap it and shake it up until the salt dissolves. (Kosher salt will keep the water from getting too cloudy, although it will usually clear up over time if using regular table salt.)

5. Continue adding salt, a few tablespoons at a time until the ketchup is just barely floating to the top of the bottle.

6. Once it is consistently floating, make sure the bottle is filled to the top with water, and then cap it tightly.

7. Now squeeze the bottle. The magic ketchup should sink when you squeeze the bottle and float up when you release it. With some practice you can get it to stop in the middle of the bottle.  

    How does it work

      This experiment is all about buoyancy and density. Buoyancy describes  whether objects float or sink. This usually describes how things float in liquids, but it can also describe how things float or sink in and various gasses.

Density deals with the amount of mass an object has. Adding salt to the water adjusted the water's density to get the ketchup to float. Sound complicated? It is, but here's the basics on the ketchup demo...there is a little bubble inside of the ketchup packet. As we know bubbles float, and the bubble in the ketchup sometimes keeps the heavy packet from sinking. When you squeeze the bottle hard enough, you put pressure on the packet. That causes the bubble to get smaller and the entire packet to become MORE DENSE than the water around it and the packet sinks. When you release the pressure, the bubble expands, making the packet less dense (and more buoyant) and, alas, it floats back up. This demonstration is sometimes known as a CARTESIAN DIVER.

Optical illusion

Thhttp://admf.co/?KWQNPXCis is optical illusion It confusing really the brain that it's moving but it's not

Blow up a ballon with yeast

you will need

    A packet of yeast (available in the grocery store)
    A small, clean, clear, plastic soda bottle (16 oz. or smaller)
    1 teaspoon of sugar
    Some warm water
    A small balloon

what to do

 1. Fill the bottle up with about one inch of warm water.
    ( When yeast is cold or dry the micro organisms are resting.)

 

 2. Add all of the yeast packet and gently swirl the bottle a few seconds.(As the yeast dissolves, it becomes active - it comes to life! Don't bother looking for movement, yeast is a microscopic fungus organism.)

 3. Add the sugar and swirl it around some more. Like people, yeast needs energy (food) to be active, so we will give it sugar.   Now the yeast is "eating!"

4. Blow up the balloon a few times to stretch it out then place the neck of the balloon over the neck of the bottle.

 

5. Let the bottle sit in a warm place for about 20 minutes If all goes well the balloon will begin to inflate! 

 

How does it work

As the yeast eats the sugar, it releases a gas called carbon dioxide. The gas fills the bottle and then fills the balloon as more gas is created. We all know that there are "holes" in bread, but how are they made? The answer sounds a little like the plot of a horror movie. Most breads are made using YEAST. Believe it or not, yeast is actually living microorganisms! When bread is made, the yeast becomes spread out in flour. Each bit of yeast makes tiny gas bubbles and that puts millions of bubbles (holes) in our bread before it gets baked. Naturalist's note - The yeast used in this experiment are the related species and strains of Saccharomyces cervisiae. (I'm sure you were wondering about that.) Anyway, when the bread gets baked in the oven, the yeast dies and leaves all those bubbles (holes) in the bread. Yum.

How Does Music Affect Plant Growth

Methods/Materials

First I ordered 10 fast plant seeds for the experiment. Then I built five boxes out of plywood and I fitted sound proof foam insulation. I planted the fast plant seeds in black planters and put together the reservoirs for watering. I put a planter and reservoir in each box with a CD player out front and headphones inside with the plants. Everyday for twenty days I checked on the plants and recorded their growth.

Results
Silence grew the best and healthiest followed by spoken word (Harry Potter). Classical music (Vivaldi concertos) ended up just under spoken word. Bringing up the rear was a very small and unhealthy plant that was 'listening' to heavy metal and (harsh) world music (Mudvayne and Rammstein).

Conclusions/Discussion

From my twenty five days of information gathering I have drawn the conclusion that all music/spoken word affects plant growth negatively. Some plants were affected more negatively than others. So I can just repeat an old saying, 'Silence is golden.'

The project was to find how music and spoken word affect plant growth.

Science Experiment:-Human Battery

 The objective: The experiment will prove which gender produces the most electric current and in which condition do they have a greater current. The testing is done with two different types of metal plates hooked up to an ammeter. The subject then places his/her hands on the plates which gives the ammeter a reading of how strong the electric current is in the subjects body.

Methods/Materials

[1] Copper Plate [1] Aluminum Plate [1] Large block of wood [1] Micro Ammeter[x] Human test subjects [1] Sink with running water

Procedure:

1. Gather all materials

2. Set up experiment 2a. Place metal plates over wooden blocks (to keep other electric currents from reaching the plates) 2b. Set negative side of ammeter to one plate 2c. Set positive side of ammeter to other plate 2d. Turn the ammeter to 2mA

3. Have subject place each hand on a separate plate

4. Record the reading from the ammeter

5. Repeat [Steps 3&4] with different subjects

6. Have subjects thoroughly wash their hands with water and dry them

7. Repeat [Steps 3,4,&5] with different subjects

8. Have subjects jump in one spot for approximately 1 minute

9. Have the subjects rub their hands together

10. Repeat [Steps 3,4,&5] with different subjects

11. Chart the results from the data

12. Find average of both genders

13. Find average of all the different #conditions#

Results

 The results of the testing showed that the Males produced a stronger current of electricity. The males average was .056 amps and .047 amps for the females. The jumping did increase the strength of the current but some males had different results and had a better current from not doing anything. These results may have had an error from the test subject. Some of the males either didnt participate correctly, or they didnt sweat enough for the correct reading from the ammeter.

Conclusions/Discussion

 The experiment is important because it can be used in certain medical monitoring or artificial parts. Pacemakers can vary from person to person on how strong they need to be. We can determine the strength of a pacemaker by the gender and type conditions the person undergoes the most. Since females generate the most electricity in their bodies, they need a stronger pacemaker as opposed to males. A normal, clean, active person would need a stronger pacemaker as well.

This project will prove which gender produces the most electric current and in which condition do they have a greater current.

 

 

 

 

Science Experiment:-Creating Electric Current with a Magnet

The objective: Faraday's Law states that an electric current can be generated by passing a magnet through a coil of wire. This experiment attempted to verify Faraday's Law by using a strong heavy duty magnet, varying the number of coil windings, and passing the magnet through the coils at different speeds to see the amount of electric current created.

Methods/Materials

Wind coils using 32 gauge wire (200 turns and 400 turns). Pass a stong magnet through each of the coils. Measure the amount of electricity generated by the magnet moving through the coils by using a galvanoscope. Repeat the procedure by moving the magnets through the coils at different speeds to see the difference in the current generated.

Results

Coil with more windings produced more current and the faster the magnet was passed through the coils the greater the current generated.

Conclusions/Discussion

By inserting or removing the magnet from the windings of coiled wire, electricity was produced as predicted by Faraday's Law.

Electricity is generated by passing a magnet through coils of wire as predicted by Faraday's Law.