DAILY EXPERIMENTS
Fooling Your Eyes - Write out the names of the following colors: red, green, black, blue, orange using colored crayons.  Scientists think that the human brain has one storage place for the names of colors and another for the names of objects so it takes a while for your brain to override the discrepancy between the name and the actual color.  

Red
Green
Black
Blue
Orange

Diving Condiments - Fill a clear plastic bottle with water.  Find a condiment packet that barely floats.  Place the packet into the bottle and close the top.  The condiment packet should rise and fall as you squeeze it.  Many sauces are denser than water, but it is the air bubble at the top of the sauce that determines whether the packet will sink or swim. Squeezing the bottle causes the bubble to shrink. This smaller bubble is less buoyant and the packet sinks.

Remove a drinking straw from its packet.  Crunch up the straw like shown.  Place the straw on the table and add a few drops to it using the homemade eye dropper (pictured below) Watch what happens as capillary action causes the water to "surge" through the straw and fill the pores in the paper.

 

Place a hard-boiled and peeled egg on top of a jar with an opening slightly narrower than the egg.  Light two wooden matches, withdraw the egg momentarily, drop in the match and place the egg back on quickly.  Watch as the air pressure pops the egg into the jar.

 
Try to break an egg by squeezing it in your palm.   It's impossible! 
By wrapping your fingers around the egg, you distributed the pressure evenly throughout the shell.  Eggshells are incredibly strong for their weight. The spherical shape of the eggshell maximizes strength with a minimum of shell material.

 
Place a very strong magnet near a light bulb which has a filament.
Electricity from your wall socket alternates direction which's why the electricity in your house is called alternating current or AC. Electricity flows one direction then switches and flows the opposite way. This switching back and forth happens 120 times a second or goes through 60 cycles each second (a cycle is one episode of back and forth electrical flow).

 
A wire carrying electricity creates a magnetic field. If the direction of the electricity changes so does the magnetic field. The wire or filament inside the bulb does this. The hot glowing wire creates an alternating magnetic field.  Two magnets held near each other attract or repel each other. By holding your magnet near the bulb the filament inside the bulb gets attracted and repelled by the magnet 120 times a second. This causes the filament to wiggle and you can see this!  Try this with the light on an overhead projector.
Clean the oil off your finger and dip your finger in water...then rub it on the edge of a wine glass with some water in the glass.  It should start to whine like a violin.  Try different wine glasses and different amounts of water and make hypotheses about the pitch of the sound and the level of water in the glasses.

Create your own atomizer.  Place one straw in a water glass (keep it off the bottom so you don't block the flow of water) and blow across the top of the straw with another straw.  The fast moving air causes low pressure over the straw and the pressure of the atmosphere will force a spray of water droplets out the straw. 

 
Get 3 bowls of water - one hot, one cold and another luke warm.  Have your subject place one hand in hot and one in cold.  After a while have the subject place each hand in the room temperature water and ask what they feel.  The "hot water hand" should feel cold and the "cold water hand" should feel hot.  
Can two cans of pop weigh differently?  Try this with a regular and a diet soft drink.  The regular will sink because it has more sugar. Both cans are the same size (volume- 12 fl. oz. or 355 ml.) and are filled with the same amount of artificially flavored liquid. One of your sodas has sugar and the other has a sugar substitute called or Aspartame which is 200 times sweeter than sugar in its pure form.

 
Make your own straw reed instrument using a soft drink straw.  Flatten one end and cut it like you see at the right.  As you blow, the trimmed straw tips vibrate. This vibration causes the air molecules to vibrate. Vibrating air molecules are also known as sound waves. As you blow, sound waves travel up and down the straw   
Air pushes on everything you see: the floor, the walls, the ceiling and the paper on the mouth of the bottle. The pushing that air does is called air pressure. Even though gravity is yanking the water inside the bottle down, the upward push of air pressure outside the bottle is greater than the downward pressure inside the bottle.  
Place a straw between you fingers.  Twist the ends and then have someone snap the middle of the straw with a finger snap. You trapped air in your straw and compressed it. By twisting, you squeezed the air that was in a long straw into the space of a very short straw. The flick compressed the air inside the straw even more, so much so and so fast that the walls of the straw couldn't take it and popped!  
Pour 1 cm of oil (olive or sesame) on top of 3/4 cup of cold water.  Then sprinkle some salt on the oil surface. Oil is less dense than water, so it floats. Salt is more dense than both water and oil so it sinks. What makes things interesting in this trick is that the oil tends to cling to the salt temporarily. Together, the oil and salt blobs are denser than water, so they descend to the bottom of the cup. As the blobs go down, the oil coats and protects the salt from dissolving. However, after it sinks, the oil soon yanks free from the salt and floats up again.

Boil some red cabbage and save some of the juice.  It will act as an indicator and indicate the presence of an acid (reddish) or base (bluish) Add vinegar to one batch and see how reddish it becomes.  Add ammonia to another and watch it turn a beautiful blue green indicating a base.  
Roll up a piece of paper or use a toilet roll and place them up to your eye as you see in the diagram.  Your left eye and your right eye see and send different visual information to your brain. Usually, your two eyes send image information that is almost the same. Consequently, your brain has no problem combining the right and left images together. However, this trick forces your right and left eyes to see images that are so different that your brain blends them incorrectly. It creates an image of a hole in your hand.
Cigar floating between your fingers
Wayne Gretsky peripheral vision
Light travels invisibly through outer space unless...dust
Red blue and green cones in your fovea...give them a "trip"