24 Hour Science Projects » measurement http://www.24hourscienceprojects.com/wordpress Science Projects that Work! Tue, 31 Aug 2010 13:10:34 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Kids Science Experiments http://www.24hourscienceprojects.com/wordpress/235/kids-science-experiments/ http://www.24hourscienceprojects.com/wordpress/235/kids-science-experiments/#comments Wed, 04 Nov 2009 14:49:52 +0000 sciencemom http://www.24hourscienceprojects.com/wordpress/?p=235 kids science experiment mouseBecause we’re getting ready to roll out our new package of middle school science projects, I’ve been looking all over for good kids’ science experiments. Trust me, true experiments are not easy to find! It amazes me that reputable science publications will label any sort of science activity as an experiment. An experiment is a test of the relationship between two variables that have measurable results that can be replicated.

Here are some things I’ve found that are great science fair topics, but simply are not science experiments:

~ Making a Potato Canon - This is a fun activity, and it demonstrates how cool science can be, but it doesn’t tst anything. How can you turn it into an experiment? Vary the trajectory, and ask, “At which angle will a potato canon launch a potato the farthest?”

~ What happens when seeds germinate?” – This is listed as an experiment on a teachers’ forum. Can’t believe it. It’s a great lesson, but what are kids comparing here?! Turn it into an experiment by testing “At which temperature do seeds germinate the best?”

~ How do bones change when soaked in vinegar? – This is close to an experiment, but the project I saw didn’t have a way to measure the change. The results of a true experiment must be measurable. If your kids come up with a weigh to measure the amount of weight the bones can support before breaking – you may just have a winning kids science experiment.

That gives me a great idea for another science project experiment, actually…Stay tuned!

Kayla Fay

PS ALL of the projects at 24 Hour Science Projects are experiment based – Hypothesis, Variables, Measurable Results and all!

]]> http://www.24hourscienceprojects.com/wordpress/235/kids-science-experiments/feed/ 0 How do you convert ounces to ml? http://www.24hourscienceprojects.com/wordpress/36/how-do-you-convert-ounces-to-ml/ http://www.24hourscienceprojects.com/wordpress/36/how-do-you-convert-ounces-to-ml/#comments Fri, 24 Oct 2008 14:19:06 +0000 sciencemom http://www.24hourscienceprojects.com/wordpress/?p=36 “How do you convert ounces to milliliters?”

I get conversion questions like this all the time. There are charts, calculators and formulas all over the internet, but the easier way is…

1. Go to Google.com.
2. Type in “convert X ounces to ml”.
3. Read the answer. It will convert it for you.

(Of course, the real answer I should give you is to multiply the ounces time 29.57. But who wants to do all that work?!)

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