Scientific Method
How do we test a hypothesis?
With an experiment
How many centimeters in 1 meter?
100 cm
Jasper watches the birds in his yard for two weeks to determine which of the two bird feeders they like best. He tells his teacher that this is an experiment, but it is actually this.
What is an observation?
What is a data table?
What is the first step of the scientific method? State a ____ (not a hypothesis!)
state a problem/question
What is the unit for temperature?
Celcius
Ty wanted to find out which soil would help his plants grow best. He planted tomato plants in Soil A, pepper plants in Soil B, and squash plants in Soil C. Then he measured their height each day for five weeks. This is Ty's mistake.
What is he should have used the same plant.
Use this graph when you are comparing percentages or parts of a whole.
What is a pie chart/circle graph?
What is a group used for comparison in science?
a control
What is the unit for density?
g/mL
Callie wants to test which model car will go down a ramp fastest. She releases model A and records the time it takes to travel to the bottom. She does the same with model B, and it gets there five seconds faster. She concludes that model B is the fastest car. This is her mistake.
What is she needs to do it more than once?
Use this graph to compare different categories. Example, comparing people's favorite food.
What is a bar graph?
This variable changes because it was affected by another variable.
the dependent
Using something simple to explain an idea...(visual, physical, or mathematical)
model
.32L is how many mL?
320 mL
Dylan finds two types of varnish that are supposed to help keep the wood on his deck from fading in the sun. He decides to test them. He paints 10 boards with Vivid Varnish, and 10 boards with Valiant Varnish. He leaves 10 boards with no varnish at all. He leaves them in the sun for 4 weeks, and makes notes on their daily appearance. The 10 boards with no varnish would be his ________________ ______________.
What is a control group?
Use this graph to compare change over time. Example: How many referrals are given out daily over the course of a year.
What is a line graph?
This is an example of what part of the scientific method: Scientists decide that in an experiment on fish, all the fish will be fed the same amount of food.
What is identifying variables?
List two examples of qualitative data.
What is - (color, texture, smell, taste, shape, or how it sounds)
Which axis would the independent variable, the x or the y axis?
the x-axis
Sal gives his each of his strawberry plants 500 mL of water daily. He makes sure they get the same amount of sunlight and fertilizer. Twenty plants are in pots with potting soil. The other twenty are in pots with a sand and clay mixture. This is the independent variable for Sal's experiment.
What is soil type?
The variable that goes on the y-axis of the graph.
What is dependent variable?