Science - Unit 1: Nature of Science | Self-Quiz

Laboratory experiments allow scientists to make precise observations. Which one of the following is not a laboratory experiment? A. counting the population of a country B. comparing the color of mold in three different Petri dishes C. measuring how much three plants grow with different amounts of light D. making observations about the different kinds of fertilizer on seedlings growing near the windows in the lab

A

Clara tests a hypothesis that the heavier of two materials will insulate cold drinks better the lighter material. She adds equal volumes of the same cold drink to two different cup types. One cup type is made of lightweight plastic foam. The other cup type is a heavier ceramic material. Her sample size is five cups of each material. She records the average of her results in a chart. https://imgur.com/a/OA1ZyBp How are these experimental results valuable to Clara? A. The results explain why the materials perform differently. B. The results do not support her hypothesis so she should form a new one. C. Clara can use a different heavier material to see if she obtains different results. D. The results can be communicated with others through newspapers, magazines, and the Internet to increase the validity of her results.

B

See the drawing of the astrological zodiac signs. https://imgur.com/a/UG8Vpss Astrology is an example of a pseudoscience. Why is it considered a pseudoscience? A. because it is based on the scientific method B. because it is not based on the scientific method C. because it can be easily replicated by other scientists D. because it was a much earlier science

B

What is the description of a specific relationship under given conditions in the natural world? A. a tenet of science B. a scientific law C. a theory D. a hypothesis

B

After many investigations, Dr. Grossman, a geologist, developed an idea about why certain rocks are found in the Rocky Mountains of North America. Many geologists accepted Dr. Grossman's findings and ideas about why these rock types are present in the Rocky Mountains. What has Dr. Grossman developed? A. a law B. a theory C. a set of facts D. a hypothesis

D

The graph shows a number of a school's male and female athletes. https://imgur.com/a/GXB7uJ0 How can the data help the principal increase student participation in athletics? A. She can identify form the data why students like participating in sports. B. She can see why there is a decrease in participation between 2005 and 2006. C. She can tell why there were equal numbers of male and female athletes in 2007. D. Participation data from the previous year can help her set goals for next year

D

Which of the following is not a characteristic of a good scientific investigation? A. It can be replicated. B. It is controlled. C. It has a large sample size. D. It has a very small sample size, making it easier for anyone to replicate it.

D