4.1 and 5.1 Scientific Investigation Review - Answer Key Use with Scientific Investigation Review Google Slides

Slide # Slide Image Answer2 Answer: Hypothesis -- A hypothesis is a

prediction about what will happen in the future. It must be testable. Hint: an “if/then” statement

3 Answer: B The kind of food he gives his dog

4 Answer: amount of water, number of books, and size/shape of tray

5 Answer: Independent variable = height of ramp, Dependent variable = distance traveled by ball

6 Answer: C 6mL

7 Answer: 2500

8 Answer: A Balance and graduated cylinder

9 Answer: D Centimeter ruler and calendar

10 Answers: Quantitative Data: Weighs 20.5 g; About 4 cm. cubed; Hardness of 6 - 6.5Qualitative Data: gold color, greenish black streak, sinks in water

11 Answer: Graduated Cylinder. It measures volume.

12 Answer: 32.2 degrees C -- Teacher Extension: While this is not an extreme example, discuss “outliers” as points of data that are distant from other observation points.

13 Answer: B The same mass as the pebble. Teacher notes--The scale is balanced and level, therefore the 2 items must be of equal weight. Point of discussion: Discuss how something of greater volume can have the same --or even less--mass. Another example, a pound of feathers and a pound of lead.

14 Answer: 37 grams -- When the two pans are level and balanced and the needle points to the middle, then the added amounts of standard weights equal the mass (weight) of the rock. The weights add to 37 g, therefore the rock’s mass is 37 g.

15 Answer: J Thermometer

16 Answer: C Milliliters

17 Answer: conclusion