Matter & Chemistry
The smallest particle of an element.
What is an Atom
A change that produces a new substance.
What is a chemical reaction?
A push or pull on an object.
What is a force?
Energy due to motion.
What is kinetic energy?
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Matter with uniform composition that cannot be separated physically.
What is a pure substance?
Evidence that a chemical reaction happened could be color change, gas, or this.
What is energy release?
An object at rest stays at rest unless acted on; this property is called?
What is inertia?
Stored energy due to position or shape.
What is potential energy?
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Mass divided by volume gives this property.
What is density?
Total mass of substances before and after a reaction stays the same.
What is conservation of mass?
Total mass of substances before and after a reaction stays the same.
What is conservation of mass?
Energy transfer through direct contact.
What is conduction?
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A change that doesn’t produce a new substance.
What is a physical change?
Rearranging atoms to make new substances and releasing or absorbing energy is called
What is a chemical reaction?
Rearranging atoms to make new substances and releasing or absorbing energy is called…
What is a chemical reaction?
Energy moving through liquids or gases.
What is convection?
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A table that organizes elements by increasing atomic number.
What is the periodic table?
This gas makes up ~78% of Earth’s atmosphere but is not usable for respiration.
What is nitrogen?
This gas makes up ~78% of Earth’s atmosphere but is not usable for respiration.
What is nitrogen?
Energy carried by waves, such as sunlight, that can travel through space.
What is radiation?
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