Knowledge of Science Sand Technology Science in the news /daily life Sunscreen protects from what radiation? Ultra violet Major concem about overuse of antibiotics? Resistant bacteria Gas believed to cause rising temp eratures? Carbon dioxide 58 Resource extracted lin "fracking"? Natural gas 51 All radioactivity is man-made. False
Similarly, knowledge of basic scientific concepts differs greatly across questions. While most Americans (78%) know that the basic function of red blood cells is to carry oxygen to all parts of the body, just 20% could identify nitrogen as the gas that makes up most of the atmosphere.
Knowledge of Science Sand Technology  | Science in the news /daily life  | % correct  | Sunscreen protects from what radiation? Ultra violet  | 83  | Major concem about overuse of antibiotics? Resistant bacteria  | 77  | Nanotechnology deals with? Small things  | 65  | Gas believed to cause rising temp eratures? Carbon dioxide 58  | Resource extracted lin "fracking"? Natural gas 51  | Textbook science  | What is the main function of red blood cells? Carry oxygen  | 78  | millions The of continents have will continue been moving over  | 77  | True  | millions of years and will continue moving to move.  | Better way to test a new drug's effectiveness? Control group  | 75  | All radioactivity is man-made. False  | 66  | Which is an example of chemica reaction? Nails rusting  | 66  | Lasers work by focusing sound waves. False  | 48  | Electrons are smaller than atoms. True  | What gas makes up most of atmosphere? Nitrogen  | 20  | PEW RESEARCH CENTER/SMITHSONTAN MAGAZINE March 7-10, 2013,  | Percent correct on 13 multiple-choice and true/false questions. 7-10, 