Scientific Method

Part A

Before school one morning, Sylvia and Minnie set up a beaker with water in their science classroom to investigate evaporation. The picture shows the change in the water levels throughout the day. What question will they most likely be investigating throughout the day?

• Does the temperature of the water change over time?

• Does the amount of sunlight affect the amount of water in the beaker?

• Do the number of students in the classroom affect the amount of water in the beaker?

• Does the amount of water in the beaker change over time?

What data should Sylvia and Minnie collect to answer the question they investigated in Part A? Choose two correct answers.

• The temperature of the water in the beaker

• The amount of water in the beaker

• The time of day

• The number of students in the classroom

• The amount of sunlight in the classroom

​Part A
Marcus and Jennette set up an investigation using a lamp, a tank of water, ice cubes, and a rock as pictured. What is the best possible question they might investigate with the equipment they have?
A- Does the total weight of the rocks affect the total weight of the ice cubes?
B. Does the number of rocks affect the heat from the lamp?
C. Does the amount of water cause the ice cubes to melt?
Does the amount of time that the light shines on the tank affect how fact the ice cubes melt?

​What evidence should Marcus and Jennette collect to investigate their question? Pick 3.

A. the number of ice cubes
B. the length of time they left the light on
C. the number of rocks in the tank
D. the kind of rocks in the tank
E. the height of the lamp above the water

​Ayden and JJ are planning an experiment on how much fish grow depending on how much food the eat. What ovservations and measurements would they make when studying the feeding and growth of the fish? Pick 2 answers.

A. volume of water
B. volume of fish food
C. number of fish
D. length of the aquarium
E. length of the fish

​

​The table shows the order of the scientific method. Put the number in front of the correct step.

​

1.

​2.

​

3.

____draw conclusions

____ask a well defined question

____plan and conduct an experiment

​As an experiment, Avery and Jaylene planted a set of seeds that they watered with saltwater. They wanted to see how saltwater affected the growth of plants. They also planted a second set of seeds. How should they treat the second set of seeds?
Pick 2 answers.

A. Give the seeds fertilizer

B. Grow the seeds in a dark room.

C. water the seeds with freshwater.

D. Sprinkle the seeds with salt crystals.

E. Keep the seeds in the same environment as the other group of seeds.

​Part A
Marcy and Roberto set up a skillet on a stove to boil some water. As the water heated, they noticed water bubbling and steam evaporation from the skillet. What is the BEST question they likely investigated by setting up the equipment as they did?

A. Does the length of time the skillet is on the stove affect how much water evaporates?

B. Does the type of metal the skillet is made of affect the temperature of the water?

C. Does the color of the skillet affect the amount of water evaporating?

D. Does the type of liquid in the skillet affect how much water evaporates?

​ Part B
What data did Marcy and Roberto most likely collect to investigate the question in Part A? Pick 3 types of data.

A. amount of water in skillet when they start

B. temperature of the water

C. time they allowed the water to boil

D. time it took for water to boil

E. amount of water in the skillet after they boiled it.

​Match the part of an experiment to the definition.


Part of an Experiment Definition

Variable a prediction that can be tested


control the end of the experiment


hypothesis a factor that can be changed



result a factor that remains the same

​A. Plant A is very close to a heater that could dry out the plant.

B. Too many plants could compromise the accuracy of the results.

C Plants A, B, and C are larger than Plant D.

D. Plant D is in front of a window with the sdade pulled down and could be affected by lack of sunlight.

E. They need more plants to improve the accuracy of the results.

​Marco and Claudia want to design an experiment to measure how fast their robots can move. Marco has a robot he created using gears and blocks. Claudia has a robot that is controlled by her ipad. They also have several different ramps and textured surfaces they want to use. Select TWO well-defined questions that use the materials they have.

A. What is the best robot for students to buy?

B. Which ramp works best in all races?

C. How does the type of surface affect the speed of each robot?

D. Which robot moves the fastest over all surfaces and all ramps?

E. How does the height of the ramp affect the speed of a robot?

​Ruby used a balance scale to measure the weight of a rock she found on the playground. Here are her two attempts to weigh the rock.

​What does Ruby need to do next to find the weight of the rock. Pick 2 answers.

​A. Nothing. The scales balance.

B. Break the rock in half.

C. Take away some of the wright from the second scale.

D. Add additional weight to the second scale.

E. Add additional weight to the first scale.