Science is Cool!
This fruit is considered radioactive due to the amount of potassium that it contains, and even alerts authorities when truck loads of this fruit cross borders into other countries. What fruit is this?
Banana
Term: ?
Definition: Two or more people working together to accomplish a shared goal.
Collaboration
True or false: Your prediction at the start of the scientific method has to be correct.
False
What is the independent variable for the following experiment?
The amount of sleep you get at night affects test scores.
Amount of sleep
What is the dependent variable for the following experiment?
The amount of pimples someone has depends on how much they wash their face.
# of pimples
What animal excluding bugs experiences the most fatality due to collisions with cars in the state of Wisconsin?
Squirrels (or other small rodents)
Term: ?
Definition: Something that changes.
Variable
True or false: You can only have one independent variable in a good experiment.
True
What is the independent variable for the following experiment?
The amount of cavities someone has depends on the amount of candy that they eat.
What is the dependent variable for the following experiment?
Students talking out of turn affects the amount of time Mr. L cries in his truck on his way home from work.
The amount of time crying
What is the largest organ of the human body?
Skin
What is the definition of inquiry?
Scientists asking and answering questions using evidence/data to support.
What are the three parts that every strong hypothesis includes?
If, Then, Because
What is one possible controlled variable for the following experiment?
The amount of water someone drinks affects how often they need to use the bathroom throughout the day.
Anything that is not the independent or dependent variable!
What is one possible controlled variable for the following experiment?
The type of shoe someone wears affects their ability to score goals in soccer.
Anything that is not the independent or dependent variable!
I sound like I belong in a stable with a mare, or on a football helmet that the Indy players wear. You might expect me to gallop, to whinny, or to trot, but hatch me in a marsh, and I am something you did not. With long and leggy limbs, I can walk the day I'm born, a fluffy little bird greeting daylight at the dawn.
What am I called?
Colt
What is the definition of a dependent variable?
The variable that scientists measure at the end of an experiment.
What are the four steps of the scientific method in order?
Prediction, Hypothesis, Experiment, Conclusion/Analyze
A student tests how different plant species protect themselves against insects. She places 20 aphids on three different plant species: a tomato plant, a basil plant, and a mint plant. All plants are the exact same age and height, placed in identical pots with the same soil, and given equal water and sunlight. After 48 hours, she counts how many aphids remain on each plant. However, she conducts the experiment in a room with a window on one side, meaning the mint plant receives direct sunlight for four more hours per day than the tomato plant.
What is the independent variable.
Type of plant
A student team designs a solar-powered remote control car. They want to test how the car's speed is affected by the angle of its solar panel relative to the sun (0°, 15°, 30°, and 45°). To keep the test fair, they run all trials on the exact same smooth concrete track. However, as the battery warms up during consecutive runs, its internal electrical resistance increases, slightly altering how much power reaches the motor regardless of the solar panel's angle.
What is the dependent variable?
Speed of the car.
Humans share roughly 60% of their genome with bananas, 85% with mice, and over 98% with chimpanzees because all living organisms rely on this single molecule to store their genetic code.
DNA
What is the definition of an independent variable?
Something scientists physically change themselves during an experiment.
What is the average of the following numbers:
2, 12, 10, 8, 3
7
Biology students investigate how different types of sugar affect the rate of cellular respiration in yeast. They set up five test tubes with equal amounts of yeast and water:
Tube 1: 5 grams of Glucose
Tube 2: 5 grams of Sucrose
Tube 3: 5 grams of Fructose
Tube 4: 5 grams of Lactose
Tube 5: No sugar added
They place all five tubes into a warm water bath set to 37°C. They attach a balloon to the top of each tube and measure the circumference of the balloons every 5 minutes for 30 minutes to determine how much carbon dioxide gas is produced. After reviewing their data, they realize that yeast cannot digest lactose at all, yielding the exact same gas production as Tube 5.
What is the independent variable?
Type of sugar
Biologists are studying why toxic algae blooms suddenly spike in a local lake. They measure the concentration of dissolved oxygen in the lake every morning at 6:00 AM across three different seasons (Spring, Summer, Fall). They record the daily runoff of agricultural fertilizer into the lake, the average water temperature, and the hours of sunlight per day. After analyzing the data, they realize that while fertilizer levels stay constant all summer, the dissolved oxygen drops drastically only when water temperatures exceed 25°C and sunlight exceeds 10 hours a day.
What is the dependent variable?
Concentration of dissolved oxygen