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Scientific Method

Six components of the Scientific Method for elementary students, including an example of a science fair project.
by Roxanne Ramos on 9 July 2010

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Transcript of Scientific Method

Scientific Method Question Hypothesis Observation Experiment Results / Data Conclusion Have you ever noticed something and asked "Why?" Or maybe you thought "I wonder if ..." You've been looking at the world around you like a scientist making observations about some of the small details of your world. Like that ant crawling across your desk.
So then you ask yourself a Where is that ant going? NO !! Will the ant go for the celery or will it head for the candy? That's a good question! It's testable. I bet I know the answer to that question. It's a reasonable or educated guess about what will happen in your experiment. We usually write it as an If ... then ... statement. the ant has a choice of sweet or not sweet it will choose the sweet food. Don't worry if it is correct, it just needs to be your best guess. So, you could just watch that ant eat your lunch. Or you could squish it like a bug (hey, it is a bug!) Or you could think like a scientist and design an investigation. Yeah !! Science Project Designing an experiment is like inventing a recipe. 1. You need to figure out what you want to do. 2. You need to list your ingredients. 3. You need to write down careful instructions Purpose To see what type of food, sweet or not sweet will attract an ant. Materials ant
shoe box lid or tray
1 gm crushed candy
1 gm chopped celery
triple beam balance Procedure 1. Crush a hard candy, then using a triple beam balance, mass exactly 1 gm. Put this on one side of a shoe box.
2. Chop a piece of celery into small bits, and mass exactly 1 gm and put it on the other side of a shoe box.
3. Carefully place an ant in the center of the shoe box and observe which food the ant selects to eat.
4. Repeat the test at least 3 times. So, what happened in your experiment? No, don't tell me in words, that's your ... Give me the data in cold, hard numbers. Or even better, make a neat chart. And best of all, a colorful graph. Candy - 4 times
Celery - 2 times 4. And then do it! Now you can explain what happened in words. The ant chose the sugary candy more often than the celery. And you can tell whether your hypothesis was correct. My hypothesis was correct, the ant did prefer eating the sugary candy. The ant probably liked the sugar better because it smelled better than the celery. Or maybe because the ant knows that sugary things have more energy than vegetables do, even though vegetables are good for your health. A good conclusion also tries to explain why the results happened. Wait! We're not done yet. Don't forget to write down all of the resources from which you got your information. These can be books, websites, or people. It might even include this prezi.

by
Roxanne Ramos
Science Lab Teacher
Collins Elementary School
El Paso, TX
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