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Eleventh Grade (Grade 11) Scientific Methods and Applications Questions

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Grade 11 Scientific Method
A student investigated the physical and chemical properties of a sample of an unknown gas. Which statement represents a conclusion rather than an experimental observation?
  1. The gas is colorless.
  2. The gas is carbon dioxide.
  3. When the gas is bubbled in lime water, the liquid becomes cloudy.
  4. When placed in the gas, a flaming splint stops burning.
Grade 11 Scientific Methods and Applications
1. You see steam rising off a cup of coffee.
2. You think the coffee is hot.

Are these statements observations or inferences?
  1. 1. observation 2. inference
  2. 1. inference 2. observation
  3. 1. observation 2. observation
  4. 1. inference 2. inference
Grade 11 Scientific Methods and Applications
1. The grass on the school's front lawn is wet.
2. You think it rained outside.

Are these statements observations or inferences?
  1. 1. observation 2. inference
  2. 1. inference 2. observation
  3. 1. observation 2. observation
  4. 1. inference 2. inference
Grade 11 Lab Practices and Tools
The best footwear to wear in the laboratory is                          .
  1. closed-toed shoes
  2. open-toed shoes
  3. weather-appropriate shoes
  4. sandals
Grade 11 Lab Practices and Tools
The fire blanket is used to put out fires
  1. on the lab table.
  2. on people.
  3. on the floor.
  4. none of the above
Grade 11 Lab Practices and Tools
What is the function of the coarse adjustment knob on the light microscope?
  1. to make the image clearer
  2. to control the amount of light
  3. to move the stage up and down
  4. to hold the slide in place
Grade 11 Scientific Method
The                      is the factor in an experiment that can change if other factors are changed.
  1. independent variable
  2. constant
  3. hypothesis
  4. dependent variable
Grade 11 Lab Practices and Tools
What is the function of the diaphragm of the light microscope?
  1. to move the stage up and down
  2. to adjust the amount of light
  3. to make the image clearer
  4. to increase the magnification
Grade 11 Scientific Method
The specific qualities that allow for grouping items together are the                  .
  1. conclusions
  2. control variables
  3. criteria
  4. investigations
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