Good afternoon! It’s terrific Tuesday!

BELL Work (5 min.)1. Write down HW in planner.2. Open up your Spiral to p. 14-15 and set

up your pages.

3. Copy the questions below to answer while we watch a couple of video clips3. Describe which videos are based only on

observation and which ones involved experimentation.

4. What variables did you see?

Video Clips

The best of Shark Week Flapping Fish and Sharks Diet Coke & Mentos

1.Describe which videos are based only on observation and which ones involved experimentation.

2.What variables did you see?

OBJECTIVES:SCIENTISTS CAN:

• Explain different methods Scientists use to conduct investigations.• Analyze experiment scenarios to find independent and dependent variables.

Quick Reminder: Scientists’ Expectations

dignity respectngage participation

on time preparedstandard excellence

Yesterday – page 13

Scientific Investigations

Experiments Observations

In the fieldNo control

over conditions

In a laboratory or closed space

Complete control over conditions or

“variables”

Yesterday – Page 13 (inside)

Word Definition

Observation

Process of obtaining information using the senses.

Experiment

An organized procedure to study something under controlled conditions.

Hypothesis

A testable explanation that leads to a scientific investigation.

Independent Variable

The factor in an experiment that is deliberately manipulated (changed on purpose)

Dependent Variable

The factor that changes as a result of the independent variable. (measured)

Variables Practice – Through p. 15independentdependentconstants

Engine

Type of engine

Same carSame tracksame amount of time driven

Distance each car travels

Complete the rest of the stations.

independentdependentconstants

Answer check

Answer check

Karen wants to investigate how the thickness of paper affects the flight of a paper airplane. She tests 3 different thicknesses of paper and creates the exact same airplane with each type of paper. She flies them in the same location and measures the distance each one traveled. Draw and Complete the table below

Out: Record Answer on page 14