Physical or Chemical Changes (All Play!)
Liana is discovering that after baking a cake, she cannot take the egg back out. What type of change happened?
Chemical Change
A change of matter, but not changing the type of matter
Physical Change
What change occurred as we worked with the clay?
Physical change.
What is the name of our favorite science video program?
Generation Genius
Etai rips his science homework into a million tiny pieces. What type of change is this?
Physical change
You notice there is a great deal of rusting occurring outside on the playground slide. What type of change is this?
Chemical Change
What new substance filled up the plastic bag when we combined baking soda and vinegar together?
A gas filled the bag, carbon dioxide.
What unit is used to measure mass?
grams
Abby takes water...she boils it, she freezes it, and she melts it back to liquid. What type of change occurred?
Physical Change
This weak/strong substance can burn, change color, and have a sour taste.
Acid!
Why can't you see any bits of sugar in a sugar/water solution?
You couldn't see any bits of sugar because the particles are too small to be seen.
Where can you find your science slide decks to study for tests?
Google Science Classroom
Mr. Imburgia is drinking his coffee. He stirs to dissolve the sugar into it. What type of change is this?
Physical Change (the sugar might disappear temporarily but it will sink to the bottom eventually!)
Who were the alchemists?
The alchemists were "scientists" who experimented with mixing different substances together, trying to create different potions.
Would kind of change would occur with baking soda and water?
Physical change.
What non-electronic tool do we use to measure mass?
Pan balance
Landon was in a rush this morning, and burnt his toast for breakfast. Is this a physical or chemical change?
Burning toast is a chemical change! Although the change is on the outside, the bread can never be changed back to regular bread.
Explain what it means when a substance is "reactive."
When a substance shows some sort of change when combined with another substance. These changes can be bubbling, fizzing, or even an explosion.
Why kind of change occurs to steel that is left in water or vinegar? What do we call this process?
Chemical change; rusting
How do we measure the volume of an irregular shaped item?
By finding the difference between the milliliters in a graduated cylinder before and after the item is placed inside it.