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Question?. How does science affect you in your daily life?. Some different types of science. Biology Astronomy Meteorology Chemistry Geology Hydrology. So, how does science impact me?. Bell Ringer. What does science mean to you?. What is Science?. - PowerPoint PPT Presentation
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Question?How does science affect you in
your daily life?
Some different types of science
BiologyAstronomyMeteorologyChemistryGeologyHydrology
So, how does science impact me?
Bell RingerWhat does science mean to you?
What is Science?An organized way of using
evidence to learn about the natural world
Concepts cannot be made up
How do scientists think?Start with observations
◦A process of gathering information in an orderly way
◦Example – my computer won’t start.WHAT WOULD YOU DO?
◦Information collected is called data
2 categories of dataQuantitative – based on numbers
◦Ex) there are 5 eggs in the nest she owns 75 pairs of shoes
Qualitative – descriptive information that involves characteristics and cannot be counted
◦Ex) the group appears to be happy they must be hungry
What do we do with dataUse it to make an inference
◦A logical interpretation based on prior knowledge or experience
◦Ex) OK drinking water?
Explaining and interpreting evidencePROBLEM
◦What is the ball made out of? What would be your plan of action to try to answer the question?
What’s the ball made out of?Compare and Contrast
SmellFeelSound
(black box)
(scientific method graphic organizer)
Scientific Method1. State a problem and research it
2. Form a hypothesis◦ “if _______, then ________” statements
◦ A proposed scientific explanation
◦ Done using prior knowledge, logical inference and informed/creative imagination
Scientific method3. Setting/Performing a controlled experiment
◦ Write out detailed procedure and conduct◦ Only 1 variable changed at a time◦ 3 variable types
Controlled – stays the same Manipulated – deliberately changed Responding –happens as a result of the manipulation
4. Observe, recording and interpret results
5. Drawing a conclusion◦ What happened?
LEGO Procedure LabCan your procedure be replicated?1. Behind a screen, assemble 10 blocks into
an unusual structure. Write directions that others can use to replicate that structure without seeing it.
2. Exchange directions with another team. Replicate the team’s structure by using its directions.
3. Compare each replicated and original structure. Identify which parts of the directions were clear and accurate, and which were unclear or misleading.
Post LEGO lab questions1. How could you have written
better directions?
2. Why is it important that scientists write procedures that can be replicated?
When you cannot experimentSometime need to observe in
natural setting (field studies)
Sometimes experiments are not ethical◦human/animal right controversies
◦So, they may try larger investigations
◦Ex) use a group already exposed to a substance
Result of many investigations Theory – a well tested
explanation that unifies a broad range of observations
◦a particular hypothesis that has evidence support from many investigations
◦May be dominant view, but not absolutely true
BiologyThe study of life
What makes something live?◦Needs to have the characteristics
possessed by living things
Characteristics of Life - Video1. Reproduce
1. Sexual2. Asexual
2. Grow/Develop
3. Respond to Environment/Move◦ Stimulus – a signal to which an
organism responds
4. Obtain & Utilize Energy◦ Metabolism –
breaking down and building up of materials to carry out life processes
http://videos.howstuffworks.com/hsw/8490-understanding-cells-the-characteristics-of-life-video.htm
More Characteristics of Life 5. AdaptationsEvolution - the changing of
an organism over time
6. Made of CellsThe smallest live unit of an
organism
7. Contain DNA Universal genetic
code
8. Maintain Homeostasis
The process of maintaining stable internal conditions
Important Qualities of BiologyAs organisms grow, they are able to
evolve
Allows the living world to be very diverse
Among different
organisms and similar
organisms
How do we know all this stuff?Remember…
◦Science is a collection of facts that are proven to be true through the use of research
Scientists use a series of steps to investigate answers to questions they may have◦Scientific Method
Reinforcementname the characteristic of lifedescribed in
each example.
1. That boy shot up five inches in only one year.2. Our cat had a litter of kittens yesterday.3. Eat a good breakfast and you will run longer.4. When that car moved, our cat ran under the
porch.5. The owls night vision allows it to see mice on the
darkest of night.6. Single celled organisms live in that pond.7. Your body normally maintains a temperature of
98.6 F.8. Scientists can prove if 2 organisms are similar by
looking at their chemical make-up.
Reinforcementdetermine if the following describes a living or
non-living thing.
1. Rust on a car
2. An apple on a tree
3. Bacteria
4. Lightning
5. Dinosaur Fossil
6. A wasp
Tools and ProceduresUse same standards in order to
replicate procedures
Measuring – metric system (meter, liter, gram, Celsius)
Analyzing – tables and graphs
Microscopes – magnify images not seen by naked eye
Techniques Cell cultures – making many cells
from 1 cell
Cell fractionation – separating 1 part of a cell from another
Safety – remember to always be SAFE!