Science Chapter 1 Flashcards
The careful study of the wonders of the universe
Science
A person who works to understand more about the universe
Scientist
Two reasons why we study science
To glorify God and to help others
When science is put to practical use
Technology
Who invented the scientific method?
Sir Francis Bacon
Looking carefully
Observing
Sensible guess or prediction
Hypothesis
Procedure to answer a question and test a hypothesis
Experiment
A decision based on evidence
Scientific conclusion
What a scientist follows rather than his or her ideas
Evidence
If you want to think like a scientist It is important to start with?
One question
Who plans a fair experiment to test a hypothesis?
A scientist
The parts of an experiment a scientist controls?
Variables
The part of an experiment a scientist changes
Independent Variable
All the variables that will stay the same
Dependent Variables
A procedure scientist design to test a hypothesis
Experiment
The part of an experiment that is changed to test the hypothesis
Independent variable
The parts of an experiment that stays the same
Controlled variable
The part of an experiment measured to test the results
Dependent variable
T or F - use only one independent variable in an experiment
True
T or F - A wise scientist follows his own ideas.
False - a wise scientist follows evidence.
T or F - A hypothesis predicts the results of your research.
True
T or F - forming a hypothesis starts with one statement.
False - forming a hypothesis starts with one question
A diagram that shows data
Graph
A part of a circle graph that represents a certain fraction or part of the whole
Sector
The amount from one line to the next on a graph
Interval
A location on a line graph that represents data
Point
Data on a graph that can help predict future data
Trend
What kind of graph compares different amounts?
Bar Graph
What graph shows How things change over time?
Line Graph
What graph shows Parts of a whole?
A pie, or circle, graph
What kind of graph can show trends?
Line graph - can be upward or downward
What kind of graph is needed to record data for rainfall each month over a one-year period?
Line graph
What kind of graph is needed to show the fraction of time spent each day on schoolwork for a week?
Circle, or pie, graph
What kind of graph is needed to show the number of each kind of plant in your garden?
Bar graph
A place where scientists work
Laboratory
What protects your eyes?
Goggles
Why do scientists where gloves?
To protect their skin from certain materials and germs
What protects your nose, mouth and lungs?
A mask
What do scientists use to record specific times that experiments start or stop?
Clocks
What counts down time and reminds you to check an experiment for observation or to gather data?
A timer
What counts up time and helps record amounts of time very precisely?
Stopwatch
A universal decimal measuring system based on the meter and kilogram
Metric system
Measures temperature of a substance
Thermometer
What measures weight?
A scale
What measures length, width or height?
A ruler
A cylinder- shaped container used to measure liquid
Beaker
Similar to a beaker, but has a narrow neck and opening
Flask
Used to hold, mix or heat small amounts of liquid
Test tube
What can be used to prevent spilling?
A funnel
What is a good tool to use when measuring out or using very small amounts of liquid?
Eye dropper
A common tool scientist use to see something more closely
A hand lens
Makes a small thing look larger
Magnify
Uses lenses and light and can focus on small details
Microscope
Excellent tool for observing things that are far away
Binoculars
Best tool for observing things in outer space
Telescope
You are conducting an experiment using chemicals. What do you need to wear to protect your eyes?
Goggles
What should you use to measure how long it takes your friend to run up the stairs?
Stopwatch
You are preparing microscope slides to examine pond water. Which measuring tool would help place a drop on the slide?
Eye dropper
What viewing tool would help you observe a deer in its natural habitat?
Binoculars
What viewing tool would help you observe the stars or other heavenly bodies?
Telescope
