Bio25% - Unit 1 Summative- NRS- Concept 1 notes- Bio basics

When leaving a movie theater, a person notices that the sidewalk is now wet. If the person assumes it rained during the movie, the person is making

• hypothesis

• inference

• observation

• prediction

Alexander was studying the effect of playing rock music on plant growth. One of the plants was exposed to rock music for 24 hours a day for a period of 6 weeks. Data on the growth of the plant was collected at the end of each week and plotted in a graph. Based on the data, which would be the MOST reasonable measurement at the end of an 8-week period?

• 2 dm

• 6 dm

• 8 dm

• 16 dm

When designing an experiment, scientists will test the relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the

• dependent variable

• constant

• independent variable

• control group

What must be considered when designing a solution for a problem with technology?

(Important: Check box ALL THE CORRECT ANSWERS)

• Cost

• Time

• Materials

• Energy

According to the purple concept 1 notes, which of the examples below would be considered a "qualitative observation"?

(Important: Check box ALL THE CORRECT ANSWERS)

• Green liquid

• 4 feet long

• Sour taste

• 7.2 grams

• Sweet smell

According to the purple concept 1 notes, why is it important to have as repeated trials as possible?

(Important: Check box ALL THE CORRECT ANSWERS)

• Ensure the results aren’t due to chance

• Eliminate any errors

• Ensure the data is precise

• Ensure the data is accurate

In this experiment, the independent variable they are testing is_____

(Important: Refer to the image and read the experiment description)

• The type of solution the egg is placed in

• The amount of time they were in the solution

• Change in the mass of eggs

• The ending mass of the eggs

This group also recorded a dependent variable, which is represented by_________

(Important: Refer to the image and read the experiment description)

• The change in the mass of the eggs

• The ending mass of the eggs

• The amount of time the were in the solution

• The type of solution the egg is placed in

A golf club company has four models of golf clubs. Average strokes saved per 18 holes is a positive indicator of quality (the more strokes saved, the better the golf clubs). The manufacturing time per set is a measure of how long it takes to manufacture one set of clubs. If the company wishes to produce a lot of golf clubs quickly, which set would be the best choice to meet their criteria, based on the data table?

(Hint: Refer to image 1)

• Legacy

• Titleist

• Premium

• Taylor Made

Based on the data this group gathered, the most appropriate hypothesis would be_________

(Important: Refer to the image and read the experiment description)

• “If an egg is placed in a pure water solution, then the egg will gain weight"

• “If three eggs are each placed in three different solutions, then the egg in distilled water will lose weight.”

• “If an egg is placed in vinegar overnight, then its shell will dissolve.”

• “If an egg is placed in corn syrup, then it will gain weight.”