Scientific Method
A proposed explanation for a phenomenon, based on limited evidence; an educated guess or prediction.
What is a "Hypothesis"
A scientist is testing how different amounts of sunlight affect plant growth. The amount of water and type of soil given to each plant must be kept the same. These are known as what?
What is the "Constant"
A diagram in which data about separate but related items are represented by rectangular shapes called bars
What is a "bar graph"
Which of the following is an observation that is a form of qualitative data: "The rock is gray and smooth" or "The rock weighs 50 grams".
What is "The rock is gray and smooth"
Things in an experiment that stay the same.
What is a "constant"
A way of learning more about the world.
What is "science"
There are two groups that are being tested on a new shampoo. Group A does not get the new ingredient but Group B does. Which group is the control group?
What is "Group A"
Which of the variables go on the x-axis of a bar graph?
What is "Independent Variables"
A weather scientist records the daily high temperature for a month in a table. The numbers in the table are a form of what kind of evidence?
What is "Quantitative Data"
The variable being measured in an experiment
What is the "dependent variable"
A summary of experimental or observational results that indicates whether the evidence supports or refutes the initial hypothesis
What is "Conclusion"
A visual representation that is used to show trends and changes in data over time or across other continuous variables.
What is a "Line graph"
A scientist uses a thermometer to measure the temperature of a liquid. This is an example of collecting empirical evidence using which sense?
What is a "Sight"
After forming a hypothesis, what is the next logical step in the scientific method?
What is "Design and conduct an experiment"
In an experiment testing a new fertilizer, this is the group of plants that receives the fertilizer.
What is "Experimental Group"
What graph would you use for the following data:
Time (weeks) Plant Height (cm)
1 2.5
2 5.0
3 8.0
4 10.5
What is a "Line Graph"
A student describes the texture of a rock as "rough" and "bumpy" after feeling it. What type of data are they collecting?
What is an "Qualitative Data"
When the same researcher conducts multiple trials or measurements of the same experimental
What is "repetition"
A scientist has a hypothesis that a specific medicine will cure a disease. After many experiments, her hypothesis is supported by a large amount of data from multiple tests. When many different scientists also test and support this idea, it can become what?
What is "Scientific theory"
In the experiment where we used the alka seltzer in the different solutions to see which one dissolved the fastest, what was the dependent variable?
What is "how quickly the alka seltzer dissolved"
--- THIS ONE HAS TWO ANSWERS ---
A scientist is comparing the number of different types of bacteria grown on three different petri dishes, each with a unique nutrient. What is the most appropriate type of graph to visually represent this data, and what would the length of each bar represent?
What is a "Bar Graph" and "Total number of bacteria"
The act of gathering information about an event, object, or phenomenon using one's senses or scientific instruments
What is "Observation"
when different researchers conduct the same experiment at a later time to see if they achieve similar results, to ensure reliability.
What is a "Replication"