Experimentos De Ciencia
Páginas: 22 (5486 palabras)
Publicado: 24 de abril de 2012
1.
Balloon Attraction
2.
Color Wheels
3.
Craters On The Earth?
4.
Earthquake Alert!
5.
Fat In Foods
6.
Fulcrum Fever
7.
Gases Move Faster When Warm
8.
Glaciers Away!
9.
How Many Layers?
10.
How Many Pennies?
11.
Lemon Battery
12.
Make A Rainbow
13.
Make A Wind Vane
14.
Make It Roll
15.
Making The Best Airplane16.
Marbles At Work
17.
Natural pH Tester
18.
Reaction Time
19.
Running Water
20.
Test Your Lung Capacity
21.
Thumbs Up
22.
Two Points Or One?
23.
Water Cycle
24.
What Are You Breathing?
www.HomeEducationResources.com
Balloon Attraction
Materials
2 or more balloons
String
A sweater with wool in it
A shallow pan of water
Small tornpieces of paper
Procedure
1. Blow up the balloons and tie closed with the string, leaving a tail.
2. Charge the balloons by rubbing against the wool sweater.
3. Bring the balloons close to each other and watch the effect.
4. Bring one balloon close to the water in the pan without touching the
water. What effect does the balloon have on the water?
5. Bring the other balloon close to thepieces of paper. What effect does
the balloon have on the paper?
6. Experiment by bringing the balloons close to other objects. Which
objects are attracted, and which are repelled? Remember to
recharge the balloons as necessary.
Rubbing a balloon on a sweater causes it to be charged with electrons, which are negatively charged. The balloon will attract positively charged items like paper oryour hair, and
will repel other negatively charged items like another balloon. The energy in charged objects
is called static electricity.
www.HomeEducationResources.com
Color Wheels
Materials
Cardboard or stiff paper such as from old file folders
Crayons, markers, or paint
Pencils
Procedure
1. Cut out several circles each about 3 inches across.
2. Divide the circles into 3 or 4equal parts, and color the parts different
colors. For example, have one that is made of three parts, one part
being red, one part green, and the third part blue. Make another
circle that has two red parts opposite each other and two green.
3. Make a small hole in the center of each circle and push a short pencil
through the hole, with the pencil tip pointing down away from the
colored side.4. Amazingly, when you spin the little color “tops”, the colors blend, and
you see a new color. Can you see white when spinning green, red,
and blue?
5. Try mixing different colors on more wheels to see what new colors you
can get when you spin!
Mixing light of different colors (such as this experiment simulates) creates much different results than mixing paints of the same colors. Forexample, mixing red, green, and
blue paint makes a brown mess, yet mixing the same colors of light will produce a near-white
light.
www.HomeEducationResources.com
Craters On The Earth?
Materials
Moist sand
A shallow baking dish
A marble
A golf ball
Procedure
1. Put the sand into the baking dish at least 2 inches deep and smooth
out the surface.
2. Hold one ball at a time about sixinches above the sand and drop it,
allowing it to make an impression. Remove each ball carefully.
Measure the width and depth of each impression and record it.
3. Now repeat the above step three more times, increasing the distance
the balls are dropped from by about 2 inches each time. Record
the widths and depths of each impression made.
4. Compare the measurements you have taken. Does anobject falling
from farther away make a wider impression, a deeper impression,
or both?
We all know the moon is covered in craters, but the earth also has several notable craters. The most significant crater in the US is in Arizona. Scientists think a large chunk of
rock from space crashed to the earth and made this huge impression about 20,000 years ago.
www.HomeEducationResources.com...
Balloon Attraction
2.
Color Wheels
3.
Craters On The Earth?
4.
Earthquake Alert!
5.
Fat In Foods
6.
Fulcrum Fever
7.
Gases Move Faster When Warm
8.
Glaciers Away!
9.
How Many Layers?
10.
How Many Pennies?
11.
Lemon Battery
12.
Make A Rainbow
13.
Make A Wind Vane
14.
Make It Roll
15.
Making The Best Airplane16.
Marbles At Work
17.
Natural pH Tester
18.
Reaction Time
19.
Running Water
20.
Test Your Lung Capacity
21.
Thumbs Up
22.
Two Points Or One?
23.
Water Cycle
24.
What Are You Breathing?
www.HomeEducationResources.com
Balloon Attraction
Materials
2 or more balloons
String
A sweater with wool in it
A shallow pan of water
Small tornpieces of paper
Procedure
1. Blow up the balloons and tie closed with the string, leaving a tail.
2. Charge the balloons by rubbing against the wool sweater.
3. Bring the balloons close to each other and watch the effect.
4. Bring one balloon close to the water in the pan without touching the
water. What effect does the balloon have on the water?
5. Bring the other balloon close to thepieces of paper. What effect does
the balloon have on the paper?
6. Experiment by bringing the balloons close to other objects. Which
objects are attracted, and which are repelled? Remember to
recharge the balloons as necessary.
Rubbing a balloon on a sweater causes it to be charged with electrons, which are negatively charged. The balloon will attract positively charged items like paper oryour hair, and
will repel other negatively charged items like another balloon. The energy in charged objects
is called static electricity.
www.HomeEducationResources.com
Color Wheels
Materials
Cardboard or stiff paper such as from old file folders
Crayons, markers, or paint
Pencils
Procedure
1. Cut out several circles each about 3 inches across.
2. Divide the circles into 3 or 4equal parts, and color the parts different
colors. For example, have one that is made of three parts, one part
being red, one part green, and the third part blue. Make another
circle that has two red parts opposite each other and two green.
3. Make a small hole in the center of each circle and push a short pencil
through the hole, with the pencil tip pointing down away from the
colored side.4. Amazingly, when you spin the little color “tops”, the colors blend, and
you see a new color. Can you see white when spinning green, red,
and blue?
5. Try mixing different colors on more wheels to see what new colors you
can get when you spin!
Mixing light of different colors (such as this experiment simulates) creates much different results than mixing paints of the same colors. Forexample, mixing red, green, and
blue paint makes a brown mess, yet mixing the same colors of light will produce a near-white
light.
www.HomeEducationResources.com
Craters On The Earth?
Materials
Moist sand
A shallow baking dish
A marble
A golf ball
Procedure
1. Put the sand into the baking dish at least 2 inches deep and smooth
out the surface.
2. Hold one ball at a time about sixinches above the sand and drop it,
allowing it to make an impression. Remove each ball carefully.
Measure the width and depth of each impression and record it.
3. Now repeat the above step three more times, increasing the distance
the balls are dropped from by about 2 inches each time. Record
the widths and depths of each impression made.
4. Compare the measurements you have taken. Does anobject falling
from farther away make a wider impression, a deeper impression,
or both?
We all know the moon is covered in craters, but the earth also has several notable craters. The most significant crater in the US is in Arizona. Scientists think a large chunk of
rock from space crashed to the earth and made this huge impression about 20,000 years ago.
www.HomeEducationResources.com...
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