Unit 1 Exam Review

All of the following pieces of equipment EXCEPT for ____________ could be useful for transferring a liquid from one container to another.

• beaker

• funnel

• Petri dish

• Graduated cylinder

Joe needs 25mL of motor oil to test his combustion engine. Which tool would give him the most precise measurement?

• beaker

• flask

• test tube

• graduated cylinder

Which of the measurements below is the most accurate?

• Graduated Cylinder - 80.6 mL

• Erlenmeyer Flask - 325 mL

• Beaker - 48 mL

• Beaker - 400 mL

Which of the measurements below is the most precise?

• Graduated Cylinder - 80.6 mL

• Erlenmeyer Flask - 325 mL

• Beaker - 48 mL

• Beaker - 400 mL

Which piece of glassware is never used for making measurements?

• beaker

• Erlenmeyer Flask

• test tube

• graduated cylinder

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...

• a hypothesis

• an inference

• an observation

• a prediction

In performing any laboratory experiment, what is the first step performed out of the following choices?

• collect data from the experiment

• analyze data

• publish results

• form hypothesis

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 decimeters

• 6 decimeters

• 8 decimeters

• 16 decimeters

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

When designing an experiment, scientists will test a 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

When writing a conclusion, what should you always refer back to?

• procedure

• hypothesis

• your textbook

• the materials list