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.
Which of the following is the first step a teacher should take after obtaining a new chemical to use in a student lab?
reading the MSDS for the chemical
When deciding to house a live animal in the classroom, the risk of a potential health hazard to the student or animal must be weighed against the educational value added. What guidelines must first be considered to address this potential hazard, prior to making a choice of getting the animal for the classroom?
the children that might be affected by allergic symptoms
What must a scientist consider when deciding which tools to use to gather data?
the expected outcome of the investigation
Which of the following pieces of safety equipment is appropriate to use if chemicals splash onto a student’s leg?
saftey shower
Density is measured by using the formula mass/volume. In addition to a scale, which of these tools would be helpful in finding the density of a regular-shaped, solid object?
metric ruler
Which of the following should be done before using a triple beam balance to measure the mass of an object?
Zero the balance.
During part of a lab activity, students need to let a solution evaporate to see if any solutes are left behind. Which of the following tools would be most appropriate for this purpose?
watch glass
A second-grade class has created a pictograph of what type of shoe each person is wearing. What is the next visual representation students can make from the information given?
A bar graph
Students in Ms. Weikel’s class are having difficulty remembering the metric unit prefixes. What should she do to help them remember the prefixes?
Teach students a helpful mnemonic device.
A school cafeteria offers 5 different meals and serves each meal on a set day of the week. A teacher takes a survey among her students of which of the 5 meals is their favorite. Which of the following should the teacher use to display the results of the survey?
A pie chart
Patricia is measuring the volume of a chemical in the lab using a graduated cylinder. She takes three measurements of the same volume, reading 40 mL, 35 mL, and 38 mL. She pours the chemical into a 50-mL beaker, and it reaches the 50-mL marking exactly. Which of the following descriptions of her data when using the graduated cylinder is most accurate?
low accuracy, low precision
Malik set up a conversion:
3 gallons x 4 quarts/ 1 gallon x 2 pints/ 1 quart x 2 cups/1 pint
Which of the following conversions is he making?
Gallons to Cups
Edward wants to make a plot that depicts his classmate’s favorite types of juice. Which of the following plots would be best suited for that?
Pie Chart
A recipe calls for 2 cups of sugar but Kristen only has a teaspoon in her kitchen. How many teaspoons of sugar will she need?
96
Which is the most appropriate unit to measure the height of the average adult human?
Inches
Suppose Mike’s actual weight is 165 lbs. His scale says his weight is 164 lbs. What can be said about his scale?
It is accurate
Johnny wants to make a graph to display the amount of money the military spent over a period of time. Which graph would best display this data?
Line Graph
You know that your height is 5 ft 3 in. A friend measures you three times and gets these results: 5 ft 10 in, 5 ft 9.5 in, and 5 ft 10.5 in. How can these measurements be explained?
low accuracy, high precision
If 2.54 cm = 1 in, about how many inches are in 1 meter?
39.4 in.
A teacher’s goal in a math lesson to have students extract data from various charts and displays. What is the best way to do this?
Give each student a chart or display and have them create questions and then trade with a partner.
Which of the following is equivalent to 3 meters?
300 centimeters
Which of the following is the most appropriate unit for expressing the volume of an average glass of milk?
Pint
Which type of graph or chart would be best used to show comparisons between the volume of water drunk by athletes competing in two different sports?
Bar Graph
Mr. Muldoon is teaching about converting between metric and English units. One of his students refuses to engage in the activity and states “I am never leaving America so I don’t need to learn this.” How should he respond?
Explain the many ways in which people in America use the metric system.
Mr. Bielenberg asks students to measure 5 different objects from home using different units of measurement. He does not receive a wide variety of objects. How could he improve this activity in the future?
Give clear guidelines for expected objects.
Mr. Grubb is teaching about accuracy and precision. He asks students to write an essay explaining the difference between the two. He gets a couple of essays that are two sentences long. How can he improve this?
Give a rubric which clearly communicates expectations.
Which metric prefix indicates a factor of 10?
Deca-
The students in Ms. Dukes’ fifth-grade class are using electronic scales to measure the weights of various rocks during a geology lesson. One group has consistently high values for the weights. What is the first thing she should ask the group to help them get back on track?
Did you zero the scale before you started measuring?
If 2.2 lb = 1 kg, and Mary weighs 120 lbs, how much does she weigh in kg?
55 kg