Scientific Methods
Measurements
Metric (SI) Conversions
Density
Dimensional Analysis
100
process used by scientists to find answers to a quetsion
What is the scientific method?
100
I am measured in grams
What is mass?
100
This is the order of metric prefixes from LARGEST to smallest. HINT! :KIDS HAVE DROPPED DEAD CONVERTING METRICS
What is KILO HECTA DEKA - DECI CENTI MILLI
100
Equation for density
What is D=m/v
100
Dimensional analysis is used to convert between these two systems of measurement
What are the English and Metric Systems?
200
The variable in an experiment that is manipulated by the experimenter. Can be thought of as the "cause" part of an experiment.
What is an independent variable?
200
I am the space that an object takes up.
What is volume?
200
The metric system is based on this number
What is 10?
200
Definition of density
What is : amount of matter per unit of space or how tightly packed matter within a material or object
200
You must first determine these two parts of the problem when you start a dimensional analysis problem
What is THE GIVEN (starting unit) and the UNKNOWN (the ending unit)
300
The variable in an experiment that changes as a result of the independent variable. It depends on the independent variable. Also can be thought of as the "effect" part of an experiment.
What is the DEPENDENT VARIABLE?
300
A strategy that can be used to find the volume of an irregularly shaped object
What is water displacement?
300
This prefix means 1000 units
What is Kilo
300
Density of an object with a mass of 30g and a volume of 15cm3
What is 2g/cm3
300
1.This is what we multiply our known units by in order to get our unknown units. 2.This is where it comes from
1.What is a conversion factor? 2. What is an equivalence statement?
400
An educated prediction
What is a hypothesis?
400
Tools used to measure mass, volume, and length (in this order)
What are a triple beam balance, a graduated cylinder, and a ruler/meter stick?
400
3.72m = _____cm
What is 372 centimeters
400
The density of an object that has a mass of 24g and which raises the water level in a graduated cylinder from 50mL to 75mL when dropped inside
What is 24g/25cm3 or .96g/cm3
400
A 3 mile race is ________ft long.
What is 3mi (5280ft/1mi)= 15,840ft
500
Design a brief experiment that addresses the question: "Do students who do homework do better on tests?" Make sure it has all of the essential parts of a scientific investigation: Hypothesis, independent variable, dependent variable, control group, a way to collect data, a way to communicate the data, and how to construct a good conclusion
Students who recieve homework will do better on tests because they will have had more practice group A-1/2 students assigned homework=independent variable group B-1/2 students not assigned =control group Scores on test=dependent variable collect scores after test and average each groups scores make a graph that shows how group a's average compared to group b's average (bar graph) Conclusion will include accepting or rejecting the hypothesis, citing sources of error, and coming up with improvements or follow up experiments.
500
The system of measurement used by scientist from all over the world
What is the Metric System?
500
The steps it takes to do a metric conversion
What is 1. Determine starting unit 2. Determine ending unit 3. count how many steps on the metric ladder it takes to get from starting to ending unit 4. move the decimal of the starting unit that amount of spaces and in the direction moved on the ladder
500
Describe the entire process it would take to figure out the density of a marble if you had a triple beam balance, a graduated cylinder and water
What is Take mass of marble on Triple Beam Balance Fill cylinder half way with water. Measure starting Volume of water Drop marble in Graduated cylinder Measure ending volume of water Subtract: Ending volume-starting volume=Volume of object Divide m/v to find density
500
Ms. Patterson is 23 years old which means she is __________minutes old
What is 23yr X(365day/1year)(24hr/1day)(60minutes/1hr) =12,088,800 minutes
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