question: Write a question you would see in a school textbook. OPTIONS:
- Water expands when it freezes.
- The boiling point of water is 100ºC.
- Water can separate into hydrogen and oxygen.
- The density of water is greater than the density of ice.
answer: Which fact about water is an example of a chemical property?


An example of a grad-school level question?
A food chain is shown. Sunlight -> Grass -> Rabbit -> Snake. What is the abiotic factor in this food chain?


I just took a test in school today. What question was I asked?

Question I was asked: A group of Canada geese left a Florida lake in the spring. The geese arrived at a Maine lake 2,000 km away in 40 days. If the geese traveled at a constant rate, how far did the geese travel on the first day?


Random question?

The rate of growth for a species of grass was measured in a treeless yard and tree-shaded yard. The grass grew twice as fast in the treeless yard. Which factor most likely contributed to the difference in growth rate?


Generate a question

Question generated: Safe practices in the laboratory include all of these except


question: Write a question you would see in a school textbook. OPTIONS:
- strong earthquakes occurring along fault zones
- data and ideas being shared among scientists
- a scientific law being passed by Congress
- teachers beginning to teach the newer theory
answer:
The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s. Changes from the continental drift concept to the plate tectonics theory required which of the following?