Obama saves the day

Fuel-Efficient cars

4 questions

1) I will be researching which car manufacture has produced the most fuel -efficient car. 2)Volkswagen's, 1L car is the world's most fuel-efficient car, having a mpg rating of 280. 3) If nobody were to manufacture fuel-efficient cars, more greenhouse gasses would be emitted into the ozone layer, helping depleat it. 4) If all car manufactures produced more fuel efficient cars and people bought them, less greenhouse gasses would be emitted, also our need for oil would decreas.

Penny Lab

Get a medicine or eye droper, fill with water, drop one water droplit on penny,count how many water droplets penny can hold without falling off the penny. My prediction was 12 droplets. The outcome for me was 10 droplets on one penny. Waters high surface tention was the the main reason the penny could hold so much water. the water droplets stuck together.