How does making a list of the materials that you will require for your experiment help? Very simply, this will ensure that you have all of the materials ready when you need them. It's important to be specific. You should mention dimensions and weight where necessary - approximate measurements may suffice for some of your projects.
Here's a sample material list from our sunscreen lotion experiment.
You'll be surprised to find that most of the materials required for your science project can usually be found at home, or be purchased a supermarket or hobby store. Of course, there will be times where you will need to make a trip to a specialist or hardware store, or even collect/harvest the materials yourself - it ultimately depends on the type of project that you're doing. Some useful places to start looking are:
As you proceed with your experiment, these are a few things that you need to remember:
1. Failing to conduct the experiment
Believe it or not, the most common mistake made by scientists is to accept the hypothesis for an explanation of a phenomenon, without performing experimental tests! Sometimes "common sense" and "logic" tempt us into believing that no test is needed! Amazing huh?
2. Ignoring relevant data
Another common mistake is to ignore or "rule out" data which does not support the hypothesis. As a scientist, you should be completely open to the possibility that the hypothesis is correct or incorrect.
Sometimes, however, a scientist may have a strong belief that the hypothesis is true (or false). Also, often, a scientist may be under pressure for various reasons to get a specific result. In such cases, there is a tendency to find "something wrong" with data which does not support the scientist's expectations, while data which does agree with those expectations may not be challenged as carefully. A responsible scientist must evaluate all data objectively and honestly, without bias.