Vocab
Gathering information using your senses, and or scientific instruments
Observation
how do models help us learn more about science?
used when they can't experiment on the real thing. helps when the topic is perhaps; too expensive, or too large, or uncontrollable (like weather)
charts, tables, graphs, graphics
How can you record data?
measureable or observations
a personal belief or judgement that does not need to be backed up with evidence
a procedure carried out under controlled conditions to test a hypothesis
Experiment
What is a variable?
any condition in an experiment thart can be changed
What is the difference between an opinion vs fact?
Measurable- when you use a tool to collect data
observable - making detailed observations using our senses (see, hear, taste, touch, and smell)
What is the difference between fact and opinion?
fact; standstill doesnt change could be numbers/dates etc
opinion; your personal feelings toward something
What does it mean to measure?
using standard units. weight.height.length.volume etc
investigation
is the setup which you compare all the others
What is a testable question?
a question in which you can use for an experiment, it is not based on one's sole feelings/opinions
why is it important to repeat trials in experiments?
To ensure more accurate data
Multiple sets of measurements, in a scientific investigation or experiment
Why is important for scientists to communicate?
a systematic way to learn about the natural world and solve problems that may include making observations, asking questions, gathering information, anazlyzing data, summarizing results, defending conclusions, and/or communicating results
scientific investigations
What type of questions do scientists need to ask to learn about the natural word?
testable questions
What are careful observations so important for scientists>
to ensure their data and information is accurately collected and used to produce accurate results
Why is it important for scientists to replicate work of other scientists?
to ensure accurate data was collected
why do science tools help scientists collect data?
allow scientists to make more accurate observations and measurements.
explanations based on evidence that is NOT directly observed
inference
What is a procedure?
What is the difference between observation, inference, opinion?
Observation: gathering information using your senses, and or scientific instruments
Inference: explanations based on evidence that is NOT directly observed
Opinion : a belief that cannot be verified through measurements or data
Why is it important for scientists to choose the right tools?
make it more effective and more efficient, produce more accurate results.
What is a hypothesis?
an educated guess, statement that can be tested