Science Experiments

Posts Tagged ‘experiments’

Question: Is there a problem with letting your kid eat 100 marshmallow peeps for a science experiment?

Also, do you think it’s possible to eat 100 marshmallow peeps? And if you think there is a problem with it, what do you have against it?

Answer: Not all at once, he’ll puke at around 50… maybe over a few days

Ocean in a Bottle Science Experiment For Kids : Filling the Bottle in Ocean in a Bottle Experiment

Question: Can I measure refraction of light in centimeters?

in this science experiment, It said to measure the angle of refraction with a metric ruler…I measured the refraction of light though water, white vinegar and vegetable oil.
do these results sound accurate?

Water- 0.5 centimeters
Veg. Oil- 1 cm.
Vinegar- 0.75 cm.
I’m only going into 9th grade, so I don’t know anything about Snell’s law or even much about refraction. This is my first physics class…

Answer: You can’t measure an angle with a linear ruler. There is no such thing as a metric angle. Measure angles with a protractor which reads in degrees or whatever its Calibration is.

You CAN measure a trig function of an angle with a ruler. Let the angle to be measured be one of the angles of a right triangle. Measure the length of 2 of the sides of the triangle and use the lengths to compute the sine, cosine, or tangent of the angle. Since Snell’s law normally involves the sine of the angle of refraction, it would make sense to divide the side opposite the angle by the hypotenuse; this would give the sine of the angle directly. BTW, when doing this you can use any kind of ruler available; the division cancels the units, whether they be cm, in, pica, etc…..

Keep up the good work……

Learn Science through Home Experiments in Kannada – Bend a Beam of Light

Question: Unique yeast science experiment?

Hi, I’m assigned to make up a simple lab about how yeast works in any context. I already know about the balloon experiment and changing the pH, different types of sugar, and temperature of water. Do you know anything different that I could do? What interesting characteristics could I test so I don’t do the same one as other people?

Answer: Well, I’m not sure if you can use this one but, yeast is needed in bread. In sourdough bread specifically, yeast from the air is used to give the bread its sour taste. You can capture yeast from the air by putting a bowl of flour and warm water mixture out. In five or six days, you should see bubbling, which is a sign that the yeast is growing. Maybe you can grow some yeast in different conditions, such as using salt water or adding sugar and then using the yeast to bake bread and see what the effects are.

Sorry if it sounds kind of dumb but reading you post gave me that idea! =]

How much sugar is in a can of soda?