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Living Things PowerPoint PPT Presentation

Objectives. Learn Lab Safety Identify Lab Equipment Write Lab Reports Learn Graphing Techniques Contrast Theory and Hypothesis Review Metric System Learn common characteristics of Life. Living Things. A. Graphing Techniques. Types of Graphs: BAR GRAPH.

Living Things

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Objectives

• Learn Lab Safety

• Identify Lab Equipment

• Write Lab Reports

• Learn Graphing Techniques

• Contrast Theory and Hypothesis

• Review Metric System

• Learn common characteristics of Life

Living Things

A. Graphing Techniques

Types of Graphs: BAR GRAPH

• Use for “chunking” or ________ data

• Show trends and ____________

• Does NOT allow ____________comparisons

Grouping

Compare Sizes

Cause and effect

Use for displaying __________

Does NOT allow ________________ comparisons

A. Graphing Techniques

Types of Graphs: CIRCLE OR PIE GRAPH

Percentages

cause and effect

A. Graphing Techniques

Types of Graphs: LINE GRAPH (scatter plot)

• Used most often in ________

• Independent/

• Dependent Variable Comparison _______________

Science

Cause and effect

A. Graphing Techniques

TWO VARIABLES

WITH DIFFERENT SCALES

A. Graphing Techniques: Cause and Effect

Just because you can graph two things does not mean one _________ the other

Causes

What can you

Thing 2

Number of

Murders

Thing 1

Ice cream sales

A. Graphing Techniques: Remember

• X is across, Y is up high

• Independent = manipulated (cause)

• Dependent = responding (effect)

• Label x and y axis, title the graph

• When time is a variable, it always appears on the X-Axis (Time is the ultimate independent variable; time waits for no one!)

meter

liter

gram

u =

K

H

D

u

d

c

m

ing

ector

oesn’t

sually

rink

hocolate

ilk

B. Metric System – Sample Problems

1000g = ________ Kg0.043 m = ___________ cm

0.23 Dg =________ g15.25 cL = ___________ KL

345 m = ________ Km101.34 Km = __________ mm

32 Dg = ________ mg1.5 DL = ____________ KL

3.43 Hm = _______ dm0.476 mL = _________ cL

C. Studying Life

What distinguishes a living thing from a non-living thing?

The study of living things is called _____________

Biology

A. What is Life?

There are 8 characteristics of living things.

Living things:

1. are made of basic units called cells.

2. are based on a common genetic code.

Generally: DNA

3. obtain and use materials and energy.

A. What is Life?

4. grow and develop.

5. reproduce.

6. respond to their environment.

7. maintain a stable internal environment

(homeostasis)

8. taken as a group, change over time (evolve)