Science Experiments

Posts Tagged ‘videos’

Question: What are some cool and fun…?

Science Experiments to do at a fifth graders birthday party. Just something small and cool.

Answer: diet coke and mentos

MAD Science Birthday Party

Question: My daughter is doing an experiment for science using water and I need an answer because I have no clue!!!?

She has purified, salt and regular water and has measured them daily to see which would evaporate the least, purified did, can someone explain why? The tap and salt have measured very close as far as evaporation process goes, why does the purified seem to evaporate slower? Thanks in advance for any answers,science was never my strong suit

Answer: The reason is the purified water has less solids and more water. Solids (like in the tap water and salt water) do not evaporate. Since the purified water is just that, there is actually more to evaporate and more water in contact with the drier air. The tap water has solids dissolved in it and the amount of water in contact with the drier air is less because of the solids.

I hope that made sense.

Electrical Science Experiment (Salt Water Detection)

Question: Where do I get these cool beads that my science teacher gave me?

My science teacher gave each of us a bracelet to do a project to experiment with light energy, when you are inside they appear to be basically white but when you go outside they turn into different pastel colors! Does anyone know where I can buy more, Because we have to return the bracelets on Monday

Answer: Ask your teacher he should know where he got them

Are they like this?

http://www.solaractiveintl.com/beads.php

Make Potassium Permanganate (sort of…)