The hypothesis is that humidity will cause different types of wood to expand and shrink at different rates.

You will cut four different types of wood into blocks, measure their dimensions, dry them in an oven, and measure their dimensions again.

You will need a redwood block, a teak wood block, a black oak wood block, a red maple block, a caliper, an oven, gloves, and a black marker pen.

It was observed that all four types of wood showed significant shrinkage along their growth rings after they were dried in the oven. The biggest change was in the black oak wood and the least change in dimensions was observed in the redwood.

This science project is interesting because it shows how humidity can affect the size of different types of wood, and how experienced wood workers and carpenters need to understand this behavior of wood in order to effectively plan and implement projects.

Consider using more than one piece of each type of wood for the experiment, for more accurate results. Try this science fair project with other types of woods such as birch, fir, pine or hemlock.

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!