1. Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day. Which of these is the manipulated variable for the students’ experiment? health of plant type of plant amount of sunlight

2. A fast food restaurant sells three main type of food (slices of pizza, hamburgers, and tacos). The restaurant owner wants to know which type of food is being sold the most. So over a period of 30 days he tracks how much each type of food is sold.   What is the responding variable in this experiment? a. The different cost for each type of food b. The amount of time that he tracked the food being sold (30 days) c. The amount of each type of food being sold

3. A student wondered if drinking an energy drink could enable you to run faster. So she asked ten 8th grade students to act as an experimental group. Each student ran 20m as fast as they could after drinking 355mL (12oz) of energy drink. All three trials were conducted in the gym, and for each trial the temperature was 22.2 degrees Celsius Three trials shown below 1st Trial: Day 01, Time: 8:00 A.M., run 20m after drinking Red Bull energy drink 2nd Trial: Day 02, Time: 8:00 A.M., run 20m after drinking Monster energy drink 3rd Trial: Day 03, Time: 8:00 A.M., run 20m after drinking Rock Star energy drink What was the independent variable in this experiment? type of energy drink How fast they ran amount of energy drink

4.

5. A spring scale is pulled downward and readings are recorded in a data table What two metric units of measure are present in this data table? centimeters & grams meters & feet Newtons and centimeters

6. During a football game, the opposing team attempted to sack the quarterback. He was able to avoid being taken down by spinning around quickly three times. Then he attempted to throw the ball. However, his aim was off, and the pass was incomplete. This lead the coach to ask “does rotation affect athletic performance.” Later the coach designed an experiment to test this. (see table below). Trial 01: Quarterback rotates three times and throws the football at a target 20 meters away. (60% success) Trial 02: Quarterback rotates four times and throws the football at a target 20 meters away. (45% success) Trial 03: Quarterback rotates five times and throws the football at a target 20 meters away. (35% success) Identify the responding variable in this experiment. a. number of times that he rotated b. total number of throws that day c. percentage of successful throws

7. Kenny and Robert were interested in learning what type of ball would travel the farthest when hit with a baseball bat. So they obtained three different types of balls, and they placed them on a platform that was 1 meter in height. Then Kenny hit each ball off the platform as hard as he could. Then they measured how far each ball traveled. Their results are displayed below. Ball Type Trial 01 Trial 02 Trial 03 Baseball 48m 47m 50m Softball 42m 45m 45m Golf ball 37m 34m 39m Identify the manipulated variable in this experiment. type of ball brand of the balls number of balls

1. Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day. Which of these is the manipulated variable for the students’ experiment? health of plant type of plant amount of sunlight

2. A fast food restaurant sells three main type of food (slices of pizza, hamburgers, and tacos). The restaurant owner wants to know which type of food is being sold the most. So over a period of 30 days he tracks how much each type of food is sold.   What is the responding variable in this experiment? a. The different cost for each type of food b. The amount of time that he tracked the food being sold (30 days) c. The amount of each type of food being sold

3. A student wondered if drinking an energy drink could enable you to run faster. So she asked ten 8th grade students to act as an experimental group. Each student ran 20m as fast as they could after drinking 355mL (12oz) of energy drink. All three trials were conducted in the gym, and for each trial the temperature was 22.2 degrees Celsius Three trials shown below 1st Trial: Day 01, Time: 8:00 A.M., run 20m after drinking Red Bull energy drink 2nd Trial: Day 02, Time: 8:00 A.M., run 20m after drinking Monster energy drink 3rd Trial: Day 03, Time: 8:00 A.M., run 20m after drinking Rock Star energy drink What was the independent variable in this experiment? type of energy drink How fast they ran amount of energy drink

4.

5. A spring scale is pulled downward and readings are recorded in a data table What two metric units of measure are present in this data table? centimeters & grams meters & feet Newtons and centimeters

6. During a football game, the opposing team attempted to sack the quarterback. He was able to avoid being taken down by spinning around quickly three times. Then he attempted to throw the ball. However, his aim was off, and the pass was incomplete. This lead the coach to ask “does rotation affect athletic performance.” Later the coach designed an experiment to test this. (see table below). Trial 01: Quarterback rotates three times and throws the football at a target 20 meters away. (60% success) Trial 02: Quarterback rotates four times and throws the football at a target 20 meters away. (45% success) Trial 03: Quarterback rotates five times and throws the football at a target 20 meters away. (35% success) Identify the responding variable in this experiment. a. number of times that he rotated b. total number of throws that day c. percentage of successful throws

7. Kenny and Robert were interested in learning what type of ball would travel the farthest when hit with a baseball bat. So they obtained three different types of balls, and they placed them on a platform that was 1 meter in height. Then Kenny hit each ball off the platform as hard as he could. Then they measured how far each ball traveled. Their results are displayed below. Ball Type Trial 01 Trial 02 Trial 03 Baseball 48m 47m 50m Softball 42m 45m 45m Golf ball 37m 34m 39m Identify the manipulated variable in this experiment. type of ball brand of the balls number of balls

8-16-16 Plop, plop, fizz, fizz lab EQ: Using the appropriate tools and procedures, I will identify all variables in an experiment, translate and interpret data into appropriate displays, & share all conclusions as well as any faulty or bias information.

TOC #4. Plop, Plop, Fizz, Fizz Lab Your team’s task: You will need to follow safety rules in this lab! Absolutely no playing around during this lab! Once you have followed the directions for testing, you need to record your data and analyze the results. Last but not least, draw conclusions for this lab (in complete sentences).

You will complete the rest of your Plop, Plop, Fizz, Fizz Observation: Question: Will room temperature, cold, or hot water make the alka-seltzer dissolve the fastest? What are the variables above? What are the controls? Form a Hypothesis: Write the statement on your lab sheet. Procedures: Materials: Beakers (3)- hot water, cold water, room temperature water Thermometer Stop watch Alka-Seltzer tablets Lab Sheet Write this on a sheet of paper You will complete the rest of your Lab Data as you go thru the experiment.

Plop, Plop, Fizz, Fizz Observation: Question: Hypothesis: Procedures: Testing- Variables- Independent- Dependent- Results/ Data: Draw Conclusions: