Just saying

Mean Verbal SAT scores for 2006:

LATIN STUDENTS: 672
Spanish Students: 577
French Students: 637
German Students: 632
Hebrew Students: 623

Average for all students: 503

Using the Scientific Method to do Science Fair Projects

Scientific Method

I talked about the Scientific Method in my post on Gardening Part 2…and realized that it is a topic that seems to generate a lot of confusion. I thought I would break it down for you here using a simple elementary school experiment. For those of you with children who have to do science fair projects I’ve chosen to use one of my sons to illustrate a couple of points. First, don’t be to quick to correct your children’s hypothesis’s when you see them heading in the wrong direction. Scientist learn as much from failed experiments as they do from ones that work. Second, do help your children identify variables that might change (explanation later) that is an area that most kids can’t see right away and need practice to understand.

One of my sons did a Science Fair project on how fast different liquids would freeze. (I could not find any pictures of this experiment … but I have included some other photos of past projects to give you an idea of how their finished boards looked. Gluing and designing the display is half the fun.) He was in early elementary school. Now that he had picked a topic…often the hardest part, he needed to start doing some research. Depending on your child’s age, and how much time you are investing, it is a good idea to have your child find several different kinds of sources. For instance, they can look up information in a book, search the internet, and maybe interview an ‘expert.’ (like a physical science teacher). While we did our research one of the things that he discovered was that salt (sodium) makes things freeze slowly.

Caleb and a science fair project on filtering water.

The next step is to come up with an Hypothesis…this is an educated guess. You guess, from the research you have done, what will happen. Well, my son was quite young, and although his research had said that sodium would make things freeze more slowly he still hypothesized that the milk would freeze quicker because it started out thicker, or more solid. When he wrote out his hypothesis for me that is exactly what he said. ‘While milk has sodium which slows down freezing I believe that the milk will freeze faster because it is already partially solid.’

Now we needed to design an experiment. This is a tricky step with many things (variables) to consider. My son chose several different liquids; tea, water, apple juice, and milk. We decided we would put some of each into ice cube trays and then check on them every 15 minutes and record what we found out.

While that gave him a general idea of his experiment, there were still a few things he needed to account for. He needed to be sure that he had controlled as many variables as possible. For instance, he decided that all of the liquids needed to start out at the same temperature, so we let the trays sit out on the counter until all of the liquids were at room temperature. He used a thermometer to determine they were all the same. He also carefully measured the amount of liquid put in each part of the trays…different amounts of liquid would yield different results. As with all good experiments he filled up several trays so that he had performed the experiment repeatedly thereby showing that his results would be consistent. Hopefully that clears up what I mean by accounting

Joseph and a project on the variety of animals in tidepools.

for variables.

Your child needs to carefully write out the directions for their experiment (including all of the directions to account for variables.) Help them understand that the directions should be so clear that someone else doing the experiment would know exactly what to do.

Now it is time to collect data. Your data should be in a written record and if possible recorded in a concrete measurement. In our case, he wrote down a description – frozen crystals are beginning to form- and estimated what percentage of the liquid had become frozen. We did this every 15 minutes until all of the liquids were frozen. Help your child to understand that at this stage they are just recording the data, not interpreting it.

Levi with a project on dental gum removing plaque.

Next, we want to analyze the data. If your child is old enough to do math this is a great time to work at getting averages of your results. For instance, if we performed our experiment 4 times and the apple juice took 35 minutes to freeze in one try, 34 in another, 37 in another etc. we would add up all of those results and divide to get the average of our experiment. This gives a practical application to all that math they are learning. Most science fairs require the data that you analyze to be displayed on graphs. Luckily there are many online programs that can help you with graphs, although I found that especially for younger children, the exercise of making the graph is very instructional.

Once we have analyzed the data we are ready to interpret. Basically, was your hypothesis correct. As you might have guessed our hypothesis was wrong. The milk was by far the slowest liquid to freeze, so in his interpretation he said, ‘Although I thought that the milk being thicker would make a difference it didn’t, the sodium in the milk kept it from freezing.” As it turns out he won with this project at the fair we were at…the object is to follow the scientific method and learn from

Caleb and his wetlands experiment.

it…not to get a ‘right answer’.

We aren’t quite done yet, the next step is to examine your experiment and decide if you could pursue it further what would you do – maybe find several liquids with sodium in them and test whether the amount of sodium made a difference.

Just about anything your kids are curious about can make a good science project. We’ve done experiments with friction using race cars going down slopes of various materials, where banana’s brown quicker, what surfaces snails like to crawl on, what foods rats prefer, whether the SPF in suntan lotion makes a difference, and whether fertilizer affects our wetlands. I’ve seen projects on belly button lint (no kidding) and the accuracy of shotguns. This is a great way to let your children’s natural curiosity lead their studies.

Where we compete the kids have to show their workbook (not a finished cleaned up copy – that is there too- but a messy first draft) to show that they did the work, not mom and dad. In their books they acknowledge what help they received, like typing, math they didn’t understand etc. The idea is to have your child do all of the work possible, but where they need help to offer assistance. Be careful not to ‘overhelp’. Let the project be theirs.

Shakespeare in Southern California

Just to let you know what is going on in the world of Shakespeare locally over the next few months.

The Southern California Shakespeare Festival at Cal Poly Pomona is performing Romeo and Juliet during the month of May. I saw their production of Twelfth Night in the fall and it was fabulous. The play is performed in an intimate theater in the round and the cast combines students with a core of experienced actors. It is definitely worth coming out and and supporting their efforts to bring quality theater to the Inland Empire.

The Redlands Shakespeare Festival will be celebrating a Season of Vengence for the month of May. All of these performances are free. The plays being performed this year are Loves Labors Lost, Hamlet, or The Tempest. If you live close enough, go see them all…THEY’RE FREE.

The Old Globes Shakespeare Festival, performs their plays in a beautiful outdoor theater. This year the productions include Twelfth Night and Coriolanus. Coriolanus is one of Shakespeare’s least produced plays and we don’t often have a chance to see it locally. I’ve included a description below. This venue is pricey, (particularly compared to the free options) but the outdoor theater with it’s thrust stage is worth seeing at least once.

Coriolanus – Shakespeare’s final tragedy is also considered one of his greatest. This powerful political drama tells the story of the great Roman general whose arrogance leads to his own downfall. One of Shakespeare’s most provocative plays, Coriolanus is a mesmerizing tale that unfolds as both personal tragedy and political thriller. From exalted war hero – to heavy handed politician to finally, exile – Coriolanus is manipulated by his power hungry mother Volumnia (one of Shakespeare’s great female roles) and his unwillingness to compromise his principles as his world spirals out of control in his crusade for vengeance.

Shakespeare by the Sea, which performs for free in a variety of venues across southern California, will be presenting Loves Labors Lost and As You Like It.

They will also be performing a third play at the Little Fish Theater in San Pedro…for that performance you will need to purchase tickets. The third play is Hamlet II. This isn’t your usual Hamlet and I’ve included a description to let you know what you are in for. It sounds like fun.

Hamlet II… is a mad, zany parody of the original complete with a new, happy ending. The whole gang is here: Gertrude, Claudius, Polonius and the old dead King as you’ve never seen them before; Rosencrantz and Guildenstern, the dim-witted twins from Hamlet’s college days; Ophelia, free love practitioner; and Laertes, aspiring hairdresser. As expected, Hamlet mopes, ponders and plots, but ultimately he decides to abandon revenge and embrace a new life of peace, love and happiness, albeit not before he gets to write a hit musical. Tragedy gets a groovy makeover and Denmark may never be the same.

So, no excuses, go and see some Shakespeare.