Science Experiments

Archive for December, 2006

Question: Nervous System Science Fair Idea?

I have to do an experiment for Science Congress, which is like a more complex science fair. I want to do it on something pertaining to the nervous system. I’ve also been interested with the effects of video games on the brain and body. Any ideas on what I should do?

Answer: At the link below are a whole lot of Nervous System experiments for Science Fairs, including….
Measure the reaction time of a person by catching a metric ruler and The Effect of Gender on Hand-Eye Coordination etc etc.

Good Luck and Have Fun !

Nice Guys Finish First (3/5) – Richard Dawkins

Question: PHOTOSYNTHESIS: chlorophyll extraction report- HOW?

in science we are covering the topic photosynthesis.
we did an experiment on extracting the chlorophyll from different leaves.we used iodine to test the starch in the leave afterwards etc etc.
now we have to write a report on it..
in it we have to include;
Title
Introduction
Hypothesis
Method and Materials
Data and Results
Conclusion
and Discussion

can someone please give me a briefing on what part of extraction experiment etc etc to put in each category and give examples maybe?
i am so stuck here, my science teacher doesn’t explain himself very well so it’s quite hard when we have to do homework..

PLEASE AND THANK YOU’S
thank you so much!
you have helped me greatly!

Answer: Title – Your title should sum up what you were trying to do in a single sentence.

Introduction – Any background information, reasons why it’s important to know what you’re trying to find out (leaves require chlorophyll to perform photosynthesis, animals depend on plants for oxygen produced during photosynthesis), and specific objectives of the study (what types of results you’ll be looking for – “We will be trying to quantify how much chlorophyll is in a leaf of [name of plant].”, or “We will compare the amounts of chlorophyll found in three common trees on the school grounds.”).

Hypothesis – a statement about what you might be expecting to find out ( “We hypothesize that the amount of chlorophyll will increase as leaf size increases”.).

Method and Materials – What you used and how you used the items. Rather than just making a list, write this as one, or a few paragraphs. “First we collected leaves from three different trees and placed them in ziplock bags.” Explain this as if you were telling someone who wasn’t in class, so they would be able to do the experiment themselves.

Data and Results – This is what you found. Period. You might include a table or graph to show your results, but you should write an explanation as well. You could compare the results, or show a range of the results, or a comparison. “Species #1 was the largest leaf in size, but Species #3 contained the most chlorophyll.”

Discussion (discussion should be placed here) – this is where you say what you think your results mean. “The largest leaf was growing in the shade, so photosynthesis may be more limited, which is why the amount of chlorophyll was less in Species #1, where Species #3 was growing in full sun.”

Conclusion – sum up what you’ve already said into one paragraph of a few sentences.

Here is a website that gives the format and explanations of scientific writing. You can skip sections like “Abstract” if you’re not required to do them: http://www.dickinson.edu/departments/biol/BioWritingGuide/biogdline.html

Preparing for Science Fairs – Part 1 – Introduction

This section of Science Experiments website discusses cool Science Experiments. These cool Science Experiments are also simple Science Experiments, easy to do at home. These easy Science Experiments are mostly Science Experiments For Kids but there are some middle school Science Experiments and high school Science Experiments.

More advanced cool Science Experiments will be added periodically.

You can do these cool Science Experiments at home for fun or use these cool and simple science http://www.science-experiments.info/Cool_Science_Experiments.html#”experiment ideas for your science fair experiments projects. From these cool science experiments, you will learn many aspects of science and have fun in the meantime.

Examples of cool science experiments presented here are:

• Seed Germination cool science experiments. (Seed Germination Experiments)
• Fossilization cool science experiments. (Fossilization Experiment, Fossilization Explanations)
• Egg drop cool science experiment.
• Egg floating cool science experiment. (Floating Egg Science Experiment 2)
• Learn cool science experiments of How to make a Barometer.
• Learn cool science experiments of how to make water fountain.
• Learn cool science experiments of How to make a Pulley. (Double Pulley)
• Learn cool science experiments of how to make you own kaleidoscope.
• Build a Periscope cool science experiments.
• Tie dying cool science experiments.
• Learn cool science experiment of How to make dye.

More cool science experiments will be added periodically, so check back here again.