Unit 1 Review Quiz

1. 1Vitamin A is an important nutrient 1. 1Vitamin A is an important nutrient.  2It is used to make rhodopsin, a pigment in our eyes, thus Vitamin A is necessary for healthy vision.  3People can develop night blindness if they do not get enough Vitamin A.   4Carrots are a source of Vitamin A.  5Carrots should be a part of every person’s daily diet. Which of the sentences above is an inference? A. Sentence 2 B. Sentence 3 C. Sentence 4 D. Sentence 5 E. None of these sentences are an inference

2. Which of these is NOT a form of evidence? Select one: a. opinion b. test results  c. data        d. observations

3. Why must a science experiment be repeated during several “trials?” Select one: a. Repetition makes us surer of our claim about the outcome of an experiment. b. Repetition will give a scientist the exact same results every time. c. Repetition means that the procedure was done correctly . d. Repetition has always been part of the scientific method.

4. What is the measurement of the liquid in the graduated cylinder below?  Give your answer to the accuracy of the instrument (nearest 0.5) and include units. Assume that this graduated cylinder measures in milliliters.

5. If a graduated cylinder contains 21 mL of water before a marble is dropped inside and 28 mL of water after       the marble is dropped inside, what is the volume of the marble? Include units.

6. What is the temperature indicated in the photo below 6. What is the temperature indicated in the photo below. Estimate to the nearest degree.

7. Which of the following is a definition for “science.” a. Science is a way of knowing that involves gathering evidence and making testable hypotheses to explain how things work in the natural world. b. Science is knowledge about how things work which is supported by evidence from others’ experiments. c. Science is making logical conclusions about how things work in the natural world based on what you’ve read. d. Both statement a and statement b are correct definitions for science. e. a, b, and c are correct definitions for science.

8. Convert 0.3 meters (m) to millimeters (mm)

9. Convert 75 milliliters (mL) to liters (L).

10. Convert 5 kilograms (kl) to grams (g).

11. Which of these is the most sensible measurement for the diagonal screen size of a cell phone? Select one: a. 8 cm        b. 8 mm       c. 8 dm  d. 8 m         e. 8 km

12. What is the total mass indicated by the triple beam balance sleds shown below?

13. Name a scientific instrument you would use to measure the following things. The mass of a marker. - The temperature of a liquid. – The length of a pencil. – The amount of liquid in a cup. -

14. Fred loved to chew gum, and he especially liked to blow bubbles 14. Fred loved to chew gum, and he especially liked to blow bubbles.  He wondered if the type of sweetener in the gum affected the size of the bubble.  Fred assumed that corn syrup would blow bigger bubbles because Bubble Yum contains corn syrup.  He bought 2 packages of gum, 1 Bubble Yum strawberry and 1 Trident winterfresh.  He blew 3 bubbles with Bubble Yum and 3 bubbles with Trident.  He had his little sister measure the circumference of each bubble with string.  What type of graph would be best to show Fred’s data? a. scatter plot graph b. pie graph c. bar graph d. line graph

15. State if the following observations are qualitative or quantitative. The wall is red. There are thirty-six chairs in the room. The boy is five feet tall. The room smells like vanilla.