Quizzes: Scientific Instruction Flashcards
Which of the following instruments would be most useful to find the volume of a very large textbook?
Metric Ruler
Which of the following would best help students learn to protect themselves against potential health hazards in the laboratory?
Require students to wash their hands after a lab experience.
When examining the color and clarity of 1 gram of sugar in 30 milliliters of water, which of the following would be the best substitute for a test tube?
Graduated Cylinder
When is the best time to remind students about the lab safety rules?
immediately before the students begin an experiment
When determining the accurate measurement of a liquid, which piece of laboratory equipment would be best to find the liquid’s volume to the nearest milliliter?
Graduated Cylinder
Which of the following is not a standard part of general expectations for a classroom pet?
having the animal evaluated by a veterinarian to ensure safety and health
A multimeter would be needed for which of the following experiments?
comparing voltage changes after adding resistors to a circuit
A spring scale would be the most beneficial for which of the following investigations?
showing that gravity is constant for objects with different masses
Which of the following pieces of lab safety equipment might be used in case of a chemical spill?
Safety Shower
Which of the following pieces of safety equipment is most important to use when students are performing an investigation mixing chemicals?
Safety Goggles
In a typical science class, the teacher selects and prepares the tools that will be used for lab measurement. Later in the year, after having had experience with various tools, would it benefit students to have a variety of tools available from which to choose rather than a preselected set of tools? Why or why not?
Yes, a variety of tools requires the student to think about why a particular tool should be used.
Which of the following substances would be safest for use in a fifth-grade science experiment?
Dish Soap
A hand lens would be the most beneficial for which of the following investigations?
comparing metamorphic and igneous rocks
A hot plate would be the most beneficial during which of the following investigations?
measuring how far rubber bands can stretch at different temperatures
Which one of the following tools would be most appropriate to measure both the velocity and acceleration of a toy car in a lab activity?
Ticker Timer
Mr. Orlando is on the far side of the room when he sees a student mishandling equipment during a laboratory activity. Which of the following is the best first step Mr. Orlando should take to resolve the problem?
Move closer to the student.
Which of the following is the appropriate piece of safety equipment to use if chemicals are splashed in someone’s eye?
eyewash station
Which of the following is recommended student behavior in a laboratory setting?
reading and following experiment instructions
Which of the following safety practices will be most applicable to first-grade science labs?
Do not eat or drink in the lab.
Students are using rulers to measure the length of leaves from different species of plants. Which of the following describes the correct way to use a ruler to measure length?
Line up the zero mark of the ruler at one end of the leaf and record the value of the smallest tick mark closest to where the leaf ends.
When instructed to do so, why should a student waft a chemical?
to smell it
During an investigation on acids and bases, a bottle of diluted lemon juice spills onto the floor. What should the students do first?
notify the teacher
During which of the following investigations would it be critical for students to wear safety goggles?
- Heating substances over a flame to find the melting temperature
- Mixing a solution of sugar and water in a glass beaker
- Diluting an acid with water
An elementary student drops a beaker in the lab. Which of the following describes the best safety procedure for the teacher to follow when cleaning up the broken glass?
Use forceps to pick up the large pieces, a wet paper towel to pick up the small pieces, and place all of the pieces in a glass disposal container.