A property that describes how heavy or light something is.
Weight
The hardness of an object describes how _______ something is.
The hardness of an object describes how hard something is.
What is the hardness of beeswax?
Soft
In science, we always label the models we draw. What does labeling mean?
Labeling means that we point to what we drew and write exactly what we drew.
A property that describes how something feels.
Texture
Mixing fruits in a salad bowl is a _________ change because you can just pick out each fruit again.
Mixing fruits in a salad bowl is a reversible change because you can just pick out each fruit again.
What is the size and color of the clock?
Size: Small or medium
Color: White, black
Is heating and cooking marshmallows reversible or irreversible?
Cooking marshmallows is IRREVERSIBLE because you cannot turn the marshmallows back to what it was before heating.
When matter changes from a solid to a liquid.
Melting
On a hot, summer day, the sun ________ up the ice cream, causing it to melt.
On a hot, summer day, the sun heats up the ice cream, causing it to melt.
How can you prove that milk is a liquid? (must talk about SHAPE)
Milk is a liquid because it can change shape.
What materials are best suited for building a bird's nest?
__________ are best suited for building a bird's nest because ______________.
When you cannot reverse the change.
Irreversible
A rubber band is _________ because it can bend very well.
A rubber band is flexible because it can bend very well.
Name 4 objects that have a rough texture.
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Elijah is making a warm vest for his puppy. Should he use metal wires or fabric? Why?
Elijah should use fabric for the vest because fabric is soft, light, and flexible and would not hurt the puppy when it wears the vest.
Anything that has weight and takes up space.
Matter
A desk is a ________ because it ________ its own shape, even when put in a different container.
A desk is a solid because it keeps its own shape, even when put in a different container.
Describe the texture, flexibility, and weight of a deflated (not blown) balloon.
Texture: Smooth
Flexibility: Very flexible
Weight: Light/not heavy
Explain the full process of how a chocolate bar melts: How does it melt? Why does it melt?
The chocolate bar melts when it changes from a solid to a liquid. It melts because it has been heated when the temperature became very hot in its environment.