Question: Choose your answer.

Which of the following would be most useful for calculating the density of a rock sample?
My Answer: graduated cylinder and balance

Question: Choose your answer.

An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
My Answer: They break down dead organisms to return nutrients to the soil.

Question: Choose your answer.

Some students were investigating the relationship between position, time, and speed. The students marked the initial position of a toy car. The students set the car into motion and marked the position of the car each second. Which of these are most appropriate for recording and analyzing the students' data?
My Answer: a table and a line graph

Question: Choose your answer.

Byron is investigating how temperature affects mold growth on bread. Before starting his procedure, Byron states in his journal that he thinks wet bread placed in the refrigerator will grow the most mold. Which term best describes Byron's statement?
My Answer:
hypothesis