Nature of Sci.Nature of Sci.

1.1 What is Sci?1.1 What is Sci?

1.2 Doing Sci.1.2 Doing Sci.

1.3 Sci. + Tech1.3 Sci. + Tech

1.1 What is Sci?1.1 What is Sci?

• Sci.Way to invest. what is happening around us

• Sci. not new– 5 senses– Ex. 2 yr old

• Now we quantify– measurements

What is Sci?What is Sci?

• A tool

• A way to investigate– Like detective– Use prior knowledge

• Body of knowledge

• Tech.– Application of Sci.

Sci. SkillsSci. Skills

• Obsrv

• Measuring

• Compare + contrast

• Record Results, Concl, – In: Journals, Magazines, Internet– Using: Tables, Graphs, Charts

1.2 Doing Sci.1.2 Doing Sci.

• Sci. Methd– Approaches taken to try to solve problems

• Fig 1-9

• Models– Math equation or physical object used to think

about things that are too big, small, fast, slow to observe

– Ex. (erosion)

1.2 Variables + Controls1.2 Variables + Controls

• Independent – factor that Scientist changes

• Dependent – factor that is being measured

• Constant-Variable that stays the same

• Control- sample that is = to other samples except not treated with variable

• Multiple Trials (Single run)– Valid & reliable

1.2 Doing Sci.1.2 Doing Sci.

• High Quality materials

• Safety– Fig 1-15

• Data Tables – way to organize and record results

• No Bias ~ Prejudice – Slanted view

1.3 Sci + Tech1.3 Sci + Tech

• Tech is ?

• Fig 1-21

• Pair & Share Ex. of Tech.– Multiple Tech?

?s to Consider?s to Consider

• What is most important tool Sci use?

• What will cause Sci to change a theory they have believed in for more than 100 yrs?

• Why is modern communication so important to Sci?

Hammer or Screwdriver?Hammer or Screwdriver?

• pg. 29

• Form Hyp.

• List Steps & Materials

• Create Data Table

• Identify Constants, Independent Variable, Dependent Variable