What is a good science experiment for a 10th grader?

¢: What is a good science experiment for a 10th grader?
I need a science experiment for school. I am a 10th grader going into Honors Chemistry and I need a non complicated but still age appropriate science experiment. Links are appreciated.

Answers and Views:

Answer by Former MN Science Teacher –sDg
These science fair sites may help:

https://www.sciencebuddies.org/

https://www.all-science-fair-projects.com/category0.html

https://school.discoveryeducation.com/sciencefaircentral/

https://www.energyquest.ca.gov/projects/index.html

https://www.hometrainingtools.com/science-projects/c/1072/

Answer by Ashley B
don’t know………

i was in 10 grade last year and don’t remember having to do projects….

Answer by David D
Here is the project…

Show how much money you save by switching to CFLs (Compact Fluorescent Lights).

Get a cardboard box, about one and a half feet cube, and put inside it a light fixture and a series of really big resistors. These resistors must be capable of about 100W dissipation. Get a precision thermometer – ideally one that can measure the inside of the box but be read on the outside of the box.

Choose and install an incandescent light bulb of a wattage so that after about 2 to 3 hours (or more) the temperature inside the box is about 100 degrees F. Once the temperature has stabilized hook up enough resistors and power them up so that the temperature goes up to about 120F. Calculate the total power used – light bulb and resistor power.

Now replace the incandescent light bulb with a CFL that puts out the same lumens (it should be about 1/3 the wattage). Now increase the resistor power (either increase the number of parallel resistors or increase the voltage across the resistors) so that the temperature again stabilizes after about 2 to 3 hours (or more) at 120 degrees F. Again calculate the total power used – light bulb and resistor power. How has it changed? Did you save any money by switching to CFLs?

The box at 120F is like a house in the winter where you have to heat the house to keep warm.