A) Advanced chemical theory B) Astronomy and space exploration C) Fun science experiments using household items D) Historical scientific discoveries
A) Ammonia B) Oxygen gas C) Hydrogen gas D) Carbon dioxide gas
A) Easy cleanup of spills B) Increased risk of injury C) Requires expert supervision D) Improved academic performance
A) Using pH indicators B) Adding sugar C) By mixing paints D) Heating substances
A) Glycerin and bleach B) Baking soda and vinegar C) Acetic acid and ethanol D) Vegetable oil and water
A) Nuclear fission B) Thermal expansion C) Photosynthesis D) Magnetic fields
A) Using sharp objects B) Ignoring spills C) Using non-toxic materials D) Working near electrical outlets
A) Endothermic reaction B) Oxidation-reduction C) Decomposition reaction D) An acid-base reaction |