Experimental Design and Measuring Homework 1

Name: Date:

1. Students are studying liquids that make bubbles.Which question could be answered by using aruler?

A. Which liquid makes bubbles that are thelargest?

B. Which liquid makes bubbles that are theprettiest?

C. Which liquid makes bubbles that are the bestsmelling?

D. Which liquid makes bubbles that are the mostinteresting?

2. Which tool would best help a student closelyobserve the smallest living thing in a drop of pondwater?

A. telescope B. binoculars

C. hand lens D. microscope

3. A student is studying the parts of a leaf.

Which tool will most help the student count allthe veins in the leaf?

A. ruler B. balance

C. hand lens D. measuring cup

4. A student puts water in a graduated cylinder andcarefully adds two small rocks.

What is the volume of the rocks?

A. 2 mL B. 3 mL C. 5 mL D. 12 mL

page 1

5. Maria checked the outside temperature before andafter school. According to the thermometersbelow, how much did the temperature changeduring the day?

A. It increased by 2◦C.

B. It increased by 14◦C.

C. It decreased by 2◦C.

D. It decreased by 14◦C.

6.

According to this graph, the fish that is about2 meters long is the—

A. bluefish B. yellowtail

C. swordfish D. bluemarlin

7. Use the information below to answer the followingquestion(s).

Sunlight enters a room through an openwindow. The sunlight shines on the woodtable, area rug on the floor, and the planemirror and metal spoon on the table. A spotof light appears on the wall opposite thewindow.

Which tool should be used to measure the lengthof the table?

A. a balance B. a stopwatch

C. a spring scale D. a centimeter ruler

8. Which method should be used to determine thetype of popcorn that produces the greatest numberof popped kernels?

A. Research articles about different ways to heatpopcorn to make it pop.

B. Design an experiment that tests multiple typesof popcorn using repeated trials.

C. Heat kernels of some types on an electricstove and heat other types on a gas stove.

D. Construct a mathematical equation thatcompares size and mass of kernels from eachtype.

page 2 Experimental Design and Measuring Homework 1

9. Study the table below.

Which question is most likely answered using thedata in the table?

A. Will eagles and brown bears eat fish?

B. Do eagles and brown bears hunt at the sametime?

C. Do brown bears affect the eagle population inthe area?

D. Is the number of fish in the area due toseasonal changes?

10. Study the table below.

Growth of Bean Plants

Week Average Heightof Plants (cm)

Growth Rate(cm/wk)

0 2.2 —

1 7.9 5.7

2 11.8 3.9

3 15.2 3.4

4 17.7 2.5

5 19.9 2.2

6 21.2 1.3

7 22.1 0.9

8 22.3 0.2

An experiment is performed and the growth rateof bean plants is calculated. The growth rate isdetermined by measuring plant height at the endof each week. Which statement correctly interpretsthe data?

A. The growth rate is constant each week.

B. The growth rate is increasing each week.

C. The growth rate is decreasing at the same rateeach week.

D. The growth rate is decreasing at a differentrate each week.

11. On Monday, students predicted how thetemperatures would compare at different times ofthe day. The graph below shows the measurementsthe students took to test the predictions.

Which prediction is supported by the results in thegraph?

A. The temperature will be higher at 12:00 P.M.than at 2:00 P.M.

B. The temperature will be higher at 6:00 P.M.than at 10:00 A.M.

C. The temperature will be higher at 12:00 P.M.than at 6:00 P.M.

D. The temperature will be higher at 10:00 A.M.than at 2:00 P.M.

page 3 Experimental Design and Measuring Homework 1

12. A recent study focused on the color variations of acertain species of mouse living in two neighboringhabitats. Habitat 1 is a dark-colored, hardenedlava bed, and habitat 2 is desert scrub withlight-colored soil located at the edge of the lavabed. The graph shows the percent of dark-coloredand light-colored mice captured in each habitat.

Which hypothesis was most likely being tested inthis investigation?

A. Individuals of a species always stay in thesame environment.

B. Individuals of a species are the same size inany environment.

C. Individuals of a species living in differenthabitats are different sizes.

D. Individuals of a species living in differenthabitats have different colors of fur.

13. A student will measure and record the growth oftwo flowering plants every other day for 10 days.

According to the diagram, which question is beingtested?

A. Do flowering plants grow better when wateredwith salt water?

B. How much fertilizer do flowering plants need?

C. Does fertilizer added to the soil lead to tallerflowering plants?

D. How tall do flowering plants grow?

14. The students counted the number of beetles onthe trunk of the oak tree. The graph shows thenumber of beetles counted at different heightsfrom the ground.

Woodpeckers eat beetles. Based on this graph,where would woodpeckers find the most food?

A. 0–3 meters B. 3–6 meters

C. 6–9 meters D. 9–12 meters

page 4 Experimental Design and Measuring Homework 1

15. A student planted three tomato plants and gave them different amounts of water each week. She wanted to seehow this would affect the number of tomatoes each plant produced. Her data are shown in the table below.

Tomato Plant Data

Tomato Plant Water Received per Week (mL) Number of Tomatoes

1 1,000 8

2 800 6

3 600 4

The student needs to make a graph to show her data. Which graph shows correctly labeled axes for these data?

A. B.

C. D.

page 5 Experimental Design and Measuring Homework 1

16.

Look at the picture. A student does an experimentwith four identical plants. Each plant gets adifferent color light.

What question can this experiment answer?

A. Which colors of light make up daylight?

B. Which kind of plant grows best in red light?

C. Which color of light is best for growingplants?

D. Which different kinds of plants need brightlight?

17. Use the picture below to answer the followingquestion.

Sarah put 10 marigold seeds in a pot of sand and10 marigold seeds in a pot of soil. She then putboth pots near a window and watered them withthe same amount of water every few days. Afterthree weeks, Sarah measured the height of themarigold seedlings in each pot. What was Sarahprobably testing?

A. how light affects the growth of marigolds

B. which type of marigold grows best

C. whether marigolds grow better in soil or insand

D. how water affects the growth of marigolds

page 6 Experimental Design and Measuring Homework 1