Science fair ideas

    1. I recommend measuring speed, acceleration, or apparent viscosity with respect to pipe angle, type of liquid, and field strength. I also recommend studying magnetorheological fluid, ferrofluid, and liquid body armor.

    2. Revealed preference theory states that a consumer's purchases reveal their preferences. The problem is, if a consumer purchases multiple items that they can afford, then does the consumer actually prefer them in the order of purchase? That is, if they buy item 1 then item 2, do they prefer item 1 to item 2? You will need sales data and data from consumers.

    3. Many supercontinents have formed in Earth's history, but it's possible that are some we don't have accurate descriptions of. Now we have a LOT of topographical data to help derive past conditions. It takes a lot of effort (and knowledge of many different subjects), but it may be possible to derive tectonic positions and climate conditions of the past. In fact, there is disagreement to 300 million years about the formation of some supercontinents.

    4. Much of linguistics is mostly based on Western languages. That is, it was the study of European languages, mostly based on Greek or Latin. Because of this, we do not have general definitions for "word," "sentence," and "clause" that apply to every language. Now, with available data about previously unstudied or unknown languages, artificial languages, and computer languages, it may be possible to find general definitions for these words, and revolutionize linguistics.

    5. The Gulf War syndrome, as of 2011 (and perhaps still), is an unsolved military medical mystery. It is named as such because it affected military veterans returning from the Gulf War. It may also affect veterans in Afghanistan and Iraq. No one (at least in the medical community) knows what causes the disorder.

    6. A perfect cuboid is a right cuboid (a convex polyhedron of 6 rectangular faces) where every side, face diagonal, and space diagonal is of integer length. No one has proven or disproven their existence.