Variables
Hypothesis
Data
Conclusion
Random
100
List the five steps of the scientific method in order.
What is 1. Question 2. Hypothesis 3. Experiment 4. Data 5. Conclusion
100
Define hypothesis.
What is an educated guess about what you think the answer to your question will be?
100
When giving your graph a title the title should be related to the experimental _________.
What is question?
100
In the conclusion of a lab report, the data is compared to the A. Materials B. Constants C. Procedures D. Hypothesis
What is D. Hypothesis?
100
A student examined a rock sample and described it as having particles of various colors that were 1 millimeter to 12 millimeters in size. The student is making 1. An inference 2. A hypothesis 3. A prediction 4. An observation
What is 4. An observation?
200
The independent variable can be described as A. What is measured in the experiment B. What is kept constant in the experiment C. What is needed to perform the experiment D. What is changed (manipulated) in the experiment
What is D. What is changed (manipulated) in the experiment?
200
A hypothesis should always be written in an ____....._____....________.... statement
What is if....then....because....?
200
TICALS stands for....
What is Title Interval Color Axis Label Scale
200
Conclusion is the _____ step of the scientific method.
What is fifth or last?
200
A group of students conducted an experiment to test the hypothesis that radish plants watered with acidic water would not grow as tall as radish plants watered with nonacidic water. The students planted two identical radish seeds in equal amounts of soil. One was watered with nonacidic water and the other with an equal amount of acidic water. All other variables that would affect plant growth were kept the same for both plants. The student measured the height of the plant in centimeters on various days shown in the data. Describe one way that the experiment could be improved.
What is measure the height of the plants everyday or more consistently for example every two days or every three days?
300
The farmer predicts that taller plants will have more blossoms and performs the following experiment to test this hypothesis. Two groups of 10 plants each are grown in identical pots filled with equal amounts of identical soil. The amount of sunlight, the room temperature, and the amount of water are held constant for both groups. Group A is given plant food at regular intervals according to the instructions on the package. Group B is not given plant food. • Explain why the amount of sunlight, the room temperature, and the amount of water were held constant for both groups.
What is they are all control variables needed to keep the experiment fair?
300
A farmer grows and sells flowering plants. The best-selling plants are the ones with the most blossoms. The farmer reads an advertisement for a plant food saying that it will make plants grow faster and taller. The farmer predicts that taller plants will have more blossoms and performs the following experiment to test this hypothesis. Two groups of 10 plants each are grown in identical pots filled with equal amounts of identical soil. The amount of sunlight, the room temperature, and the amount of water are held constant for both groups. Group A is given plant food at regular intervals according to the instructions on the package. Group B is not given plant food. The farmer observes the plants after 15 weeks of growth. The results are recorded below. State the farmers original hypothesis.
What is The farmer predicts that taller plants will have more blossoms?
300
A group of students conducted an experiment to test the hypothesis that radish plants watered with acidic water would not grow as tall as radish plants watered with nonacidic water. Describe how the data supports the original hypothesis.
What is The data shows that on day 1 the plant watered with acidic water had only grown 1cm but the plant watered with nonacidic water had grwon 2cm.
300
A science class did an experiment to see whether right-handed people catch better with their right hand than with their left hand. Five right handed people each tried to catch a ball 20 times using their right hand and 20 times using their left hand. The results are shown. What was the conclusion.
What is on average right handed people catch better with their right hand?
300
A group of students investigated how the length of a column of air inside a test tube affects the pitch of a sound produced by blowing across the top of the test tube. Pitch refers to how high or low a sound is. The length of the air column was varied by pouring different amounts of water into five test tubes. The pitch produced by each test tube was ranked on a scale of 1–5, with 1 being the lowest pitch and 5 being the highest pitch. Identify one source of error that might have influenced the results of this investigation.
What is not blowing consistently?
400
A student adds sugar to a cup of iced tea and a cup of hot tea. She notices that the time needed for the sugar to dissolve in each cup is different. She thinks this has something to do with the temperature of the tea. She wants to design an experiment to see if she is correct. Identify two variables that should be held constant besides the person.
What is amount of tea, amount of sugar, timer, type of cup, type of tea?
400
A student adds sugar to a cup of iced tea and a cup of hot tea. She notices that the time needed for the sugar to dissolve in each cup is different. She thinks this has something to do with the temperature of the tea. She wants to design an experiment to see if she is correct. • Write a hypothesis based on the student’s observations.
What is If I time how long it takes sugar to dissolve in iced tea and hot tea then the sugar will dissolve faster in the hot tea because particles move faster in something that is hot?
400
On a graph the ___________ variable goes on the x axis and the _________ variable goes on the y axis.
What is independent and dependent?
400
True or False In the conclusion of an experiment, can you leave out experimental results that do no support your hypothesis?
What is False.
400
A group of students investigated how the length of a column of air inside a test tube affects the pitch of a sound produced by blowing across the top of the test tube. Pitch refers to how high or low a sound is. The length of the air column was varied by pouring different amounts of water into five test tubes. The pitch produced by each test tube was ranked on a scale of 1–5, with 1 being the lowest pitch and 5 being the highest pitch. Identify the dependent variable in this investigation.
What is the pitch of a sound?
500
A student wondered if different types of plants would produce different amounts of oxygen.A pea plant, a fern, and a cactus were growing in equal sized containers with equal amounts of soil. State the dependent variable.
What is the amount of oxygen produced by each plant?
500
To find the average in an experiment you need to...
What is add up the trials and divide it by how many trials there were?
500
Two identical columns contained equal volumes of different size particles. The same amount of water was added to the top of each column. A student timed how long it took for the water in each column to reach the wire screen. The data is shown below. large particle- 1.2 seconds small particles- 5.0 seconds State one conclusion.
What is It could be concluded that the water took less time to travel through the large particles. This shows that the large particles had more gaps than the small particles. It took the water longer to travel through the small particles?
500
The three variables of an experiment are... 1. 2. 3.
What is 1. Independent 2. Dependent 3. Control
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