Class Science
Journal
Term 1: Melting Moments
Melted Object 1
1.
What do you think this is?
2. Do you think it always looked like this?
3. Why do you think it looks like this now?
Melted Object 2
1. What do you think this is?
2. Do you think this always looked like this?
3. Why do you think it looks like this now?
Look at the un-melted
objects…
1. In what ways are they similar?
2. In what ways are they different?
MELT/FREEZE
1. What things have you seen melting/freezing?
2. Why do things melt?
3. What is happening when things melt/freeze?
MELT/FREEZE
1. When do you want things to melt/freeze?
2. Do you have any questions about melting and
freezing?
Heat It Up
• We are going to explore what happens when
things are heated.
• What do you think might happen?
• Chocolate buttons
• Plastic spoon
• water
Heat It Up
• Where could we put the samples?
• What words could we use to describe the
materials? E.g. hot, cold, runny, hotter…
Science Groups
For lesson 2
Charli
Dominic
Sebastian
Josiah
Brenden
Lana
Lachan
Chloe
Kiara
Olivia
Zara
Bryce
Tyler
Jasper
Ryan
Luke
Lachlan K
Adelie
Kate
Thomas
Nicole
Mitchell
Rhyan
Dylan
Patrick
Manager
•
Collects and returns all
materials the team
needs
Director
•
Speaker
•
Makes sure that the
Asks the teacher and
team understands the
other team speakers for
team investigation and
help
completes each step
Move into your teams quickly and quietly.
Stay with your team.
Speak softly.
Perform your role.
Take turns.
Heat It Up
• Scientists call all things that are runny ‘liquids’
• all things that keep their shape ‘solids’
Cool customers
• Lesson goals
• To work in teams and observe what happens
when different materials are cooled
• Create a storyboard to explain what has been
happening to their materials
Cool customers
Q. What happened to the materials when they
were placed in the refrigerator?
1._______________________________________
2._______________________________________
3._______________________________________
Cool customers
We will create a storyboard using what we
observe and information we already have.
Use the ‘before and after’ drawings from the
resource sheet ‘Heat It Up’. Draw a third square
labelled ‘ After freezing’. Leave space for a
fourth square.
Cool customers
Predict what might happen if the materials are
placed in the freezer. Record your predictions
under the storyboard.
Cool customers
What happened to the chocolate when it was heated?
______________________________________________
Why do you think it no longer had the same shape?
______________________________________________
What happened when the chocolate was cooled
again?__________________________________________
____
How could you create chocolates in the shape you want?
______________________________________________
Why didn’t the spoon change shape like the chocolate?
_______________________________________________
Cool customers
Q. What will happen to the materials when they
are placed in the freezer?
1._______________________________________
2._______________________________________
3._______________________________________
Cool customers
Q. What will happen to the alcohol-based liquid
when it is placed in the freezer?
_______________________________________
_______________________________________
_______________________________________
Freeze It!
Goals.
To work in teams to observe what happens when
different materials are placed in a freezer.
Play a game of ‘freeze’ and discuss the terms
‘freeze ‘ and ‘melt’
Review and complete storyboards.
Freeze It!
Which materials became solids?
_________________________________________
Which materials stayed liquid?
_________________________________________
Did your results match your predictions? Why? Why
not? _________________________________
What else did you notice? ___________________
What does the term ‘ frozen’ mean? _____________
Freeze It!
Scientists say that materials ‘freeze’ when they
change from liquid to solid.
Sometimes solid
Learning goals:
• To role play materials freezing and melting
• Create a table identifying when materials are
either solid or liquid
• Identify that adding heat can change solid
materials to liquids and removing heat can
change liquid materials to solids.
Sometimes solid
What are the differences between solids and
liquids?
How would you act on the solids side of the
rope?
Liquid side?
Sometimes solid
‘Solid or liquid ?’ table
Material
water
honey
chocolate
metal
plastic
Rubbing
alcohol
Freezer
Refrigerator
Room
Temperature
Warm place
Sometimes solid
Where are the materials the hottest?
Where are the materials the coldest?
When are the materials liquids?
When are the materials solids?
What can this tell us about what happens when we
add heat to a material?
What can this tell us about what happens when we
remove heat from a (cool) material?
Sometimes solid
Can the metal and plastic materials become a liquid?
http://www.bbc.co.uk/schools/scienceclips/ages/8_9/soli
d_liquids.shtml
Scientists explain that almost all solid materials become
liquids at different times. Alcohol can become a solid to
liquid at low temperatures .
Review class descriptions of solid, liquid, melt and freeze.
Note: Changing materials from solid to liquids changes
the shape of objects.