Variables and Measurement
Describes the relationship between a material's mass and volume
What is Density?
The equipment/objects used to keep you safe in a lab environment
What is Safety Equipment?
Proposed explanation made on the basis of limited evidence as a starting point for further investigation.
What is a Hypothesis?
Comparing an unknown amount with a known unit to determine the length, weight, temperature, quantity, or capacity of an object or event
What is Measuring?
Series of steps that people use when creating functional products
What is The Design Process?
Linear measurement; ruler or meter stick; objects in a straight line; Unit of Measurement: Meters(m)
What is Length?
Provide protection against flying debris and chemical splashes
What are Chemical Splash Goggles?
State the problem (ask a question), Make a hypothesis (use “if” and “then”), Conduct the experiment (follow a procedure), Record & analyze data (make charts, graphs, and analyze), Draw conclusions (is your hypothesis correct or incorrect), Repeat experiment
What are the Steps of the Scientific Method?
Explaining, making interpretations, or drawing conclusions about a specific event based on observations and data
What is Inferring?
v x d (volume times density)
What is the Equation for Mass?
This type of variable stays the same and is not involved in the experiment(ex: location, type)
What is a Constant?
Used to measure mass
What is a Triple Beam Balance?
Items you will need for the experiment
What are Materials?
Grouping or ordering objects or events into categories based on similarities, differences and interrelationships
What is Classifying?
DAILY DOUBLE!:
m/d (mass divided by density)
What is the equation for Volume?
This type of variable stands alone and isn’t changed by other variables (ex: age, time)
What is an Independent Variable?
Used for determining the mass
What is a Digital Scale?
The information you got from the experiment
What is Data?
Using written or spoken words, graphs, tables, diagrams, models, and video recordings to share information and ideas with others
What is Communicating?
m/v (mass divided by volume)
What is the equation for Density?
Weight; the amount of stuff an object has (atoms); measured with a balance; Unit of Measurement: Grams(g)
What is Mass?
Used to measure the volume
What is a Graduated Cylinder?
The first or preliminary model of something, especially a machine, from which other forms are developed and copied
What are Prototypes?
Forming an idea of an expected result—not a guess– but a belief of what will occur based on present knowledge, observations, and inferences; NOT A GUESS
What is Predicting?
1. ask, 2. imagine, 3. plan, 4. create, 5. improve
What are the steps of The Design Process?
Capacity; amount of space an objects occupies; measured with graduated cylinder, ruler, overflow can; Unit of Measurement: Liters(L), cubic cm, ml
What is Volume?
The steps and precautions you have to follow when in a lab
What are Safety Precautions?
The end of the experiment
What are Conclusions?
Using the five senses to gather information about objects such as their characteristics, properties, similarities and differences (see, touch, taste, feel, listen)
What is Observing?
This type of variable depends on other factors; changes (ex: height)
What is a Dependent Variable?
the steps to complete the experiment
What is the Procedure?