Transcript Welcome Back!

Welcome Back!
Title a page “Do Nows 3/7-3/11”
•Open your binder to the table of
contents
•Have a sharpened pencil in your hand
•Get ready to learn!
“Salty Water Cleanup” p. 101
March 7, 2011
Objective: You will be able to 6
design a solution using the
technological design process.
Do Now: What do scientists do? Be
as specific as possible. Give
examples of types of scientists.
Scientists & Engineers
Scientists try to understand how the
natural world works.
cars
Engineers use science to solve
problems for people.
bridges
buses
buildings
video games
trains
“Salty Water Cleanup” p. 101
Independently read the introduction
What is the problem?
Materials to fix the problem: Large
#10 can, a 30cm x 30cm piece of
aluminum foil, plastic bottles,
popsicle sticks, hot plate, plastic
cups, tape, and ice
One step at a time…#1
Research the Problem: Describe the
information needed and how to
collect that information.
That means…What SCIENCE do you
need to research to solve this
problem?
With your partner, write down as
many science ideas as you can.
One step at a time…#2
Explore Ideas: Describe several
ideas, including any useful scientific
concepts.
That means…Brainstorm possible
solutions. Use science words. Always
two or more ideas.
With your group, write down at
least 2 ideas
One step at a time…#3-6
Step 3: Plan Summary = "choose one
plan and explain WHY."
Step 4: Steps to do the Plan = "like
procedures, write out numbered steps"
Step 5: Diagram of solution = "must
have labels."
Step 6: Test Solution = “what will I
measure and record? How often?"
Common Problems with the Design
Why will this design never work?
 Hot plate boils off
water
 Vapor condenses
on the bottom of
the plastic
container
 Condensate falls
back into the
saltwater mixture
full foil
cover
ice
plastic
contain
er
evaporated
water
saltwater
condensed
water
falling into
saltwater
no. 10
tin can
hot
plate
“Salty Water Cleanup” p. 101
In groups, FINISH your design.
Your design is due at the end of
class.
You will build your solution
tomorrow!
Homework
Flashcards
Add #10
Insulator: a substance that
conducts energy very
SLOWLY
Exit Ticket 3/7
What are the 6 steps to the
technological design process?