Font size
WorksheetsUnit 3 Lesson 1 EE 1-2 Class Activity
Total questions: 10
Worksheet time: 13mins
What can a system be in the context of the text?
A cell
A solar system
All of the above
What are inputs in a system?
Things entering the system
Things leaving the system
Things that interact with each other
None of the above
How does water cycle through smaller systems on Earth?
It evaporates and forms clouds
It becomes rain and returns to Earth's surface
It condenses in the atmosphere
All of the above
What happens when matter and energy cycle through Earth's systems?
They are destroyed
They are conserved
They are transformed
They disappear
What happens to matter when an object undergoes a chemical change?
It is destroyed
It is transformed
It is redistributed
It disappears
What are some examples of physical properties?
Density, melting point, boiling point
Flammability, reactivity
Texture, odor, solubility, toxicity
All of the above
True or False? When you burn a piece of wood, matter and energy are destroyed.
True
False
True or False? Identifying substances based on a single property is usually enough.
True
False
Match the following words with their definitions.
Chemical reaction
Atoms rearrange to form new substances
reactant
The original
substance in a ch. reaction
product
A substance that forms in a ch. reaction
A characteristic that you can observe directly or measure with a tool is called a (a)
