Vocabulary
Name the vocabulary word:
A testable idea or explanation that leads to scientific investigation
hypothesis
Name one way to help confirm an investigation is valid.
peer review
replication
What tool can be used to measure the mass of a marker?
scale, triple beam balance
Bar graph
line graph
Which variable is deliberately manipulated?
independent
Name the vocabulary word:
A condition or factor that is assumed to have one value, or remain unchanged throughout a particular investigation
constant
Jamie believes that Tide laundry detergent is more effective at removing stains than Gain laundry detergent. He tests this with an experiment. Jamie washes coffee-stained white t-shirts to see which detergent lightens the coffee stain more.
What is the independent variable?
Type of laundry detergent
Which measurements are standard?
A.) a dash of pepper
B.) 2 cups flour
C.) a sprinkle of sugar
D.) 3 teaspoons salt
B and C
A graph must always include a ________ to tell people what the graph represents.
title
What vocabulary word means a way to write very large or small numbers
scientific notation
Name the vocabulary word:
Information gathered by observation or experimentation that can be used in calculating or reasoning
data
Jamie believes that Tide laundry detergent is more effective at removing stains than Gain laundry detergent. He tests this with an experiment. Jamie washes coffee-stained white t-shirts to see which detergent lightens the coffee stain more.
Name two variables that need to be constant.
washer, type of coffee, size of stain, brand of shirt, time in washer, amount of detergent, etc.
Imagine that the climate on an island is expected to change over time. Scientists want to determine how the change will affect the animals on the island. They create a computer model that takes into account all the factors that will change. What is most likely true about the computer model?
A. It will help the scientists predict likely changes to the animals.
B. It will be useless because it includes too many factors.
C. It will allow the scientists to stop the climate from changing.
D.It will provide exact information about the future of the island.
A. It will help the scientists predict likely changes to the animals.
What type of graph is best to see trends among data over time.
Line graph
Name the vocabulary word:
A pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
model
Name the vocabulary word:
The exactness of a measurement
precision
Laken wants to test which percent of Miracle Grow makes tomato plants grow the tallest. If she were to make an experiment, what would be the control group?
plant with no miracle grow
Which 2 units listed represent density?
a.) g
b.) g/ml
c.) cm3
d.) cm
e.) g/cm3
B and E
A science class is studying seeds. Students plan to measure the length, height, and mass of different types of seeds. Which item should students use to record the data?
a.) graph
b.) nothing
c.) drawing
d.) data table
d. data table
Which 2 units listed represent volume?
a.) g
b.) g/ml
c.) cm3
d.) ml
c and d
Name the vocabulary word:
A method that is used to study and analyze the characteristics of an actual or theoretical system
simulation
Name 2 places a scientific investigation may be held
AND
State which has more controlled conditions
Lab and field
Lab is more controlled
What is the formula for density?
D=M/V
Which axis does the independent variable usually go on?
Which axis does the dependent variable usually go on?
independent: x-axis
dependent: y-axis
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
temperature