What are some topics for scientific investigation?

What are some characteristics of mitosis and not meiosis? How does putting your ear to the ground help you hear better? How does energy use effect the environment? What is 123 degrees Fahrenheit in celsius? What is PVC-U? Is E aerogenes aerobic? How are scientific evidence and scientific conclusions related? What are the four different sciences in science? Punctuated equilibrium interprets speciation as occurring how? Dust particles in the air is an example of what type of mixture? How many milliliters in a 12 ounce can of beer? When you touch something hot a neuron in you finger senses the temperature which happens first? What does low alt test indicate? How do humans impact the bodyof water you chose? What are the freezing points of the elements on the periodic table? What is color absorption? Why would blood squirt out of your leg for no apparent reason? What makes bases stronger than others? How art affects and reflects lifestyle? What is defcon?