Objects &
Motion
Energy &
Speed
Objects in
the Sky
Characteristics of Chemical Reactions
Conservation
of Mass
100

A straight path that something can move along

What is direction?

100

An object has more energy when it --

What is "moves fast"?

100

Making a complete spin on an axis

What is rotation?

100

The process by which one or more substances change to produce one or more different substances.

What is a chemical reaction?

100

This law states that matter cannot be created or destroyed

What is the law of conservation of mass?

200

A regular and repeated way in which something happens or is done

What is a pattern?

200

The ability to do work

What is energy?

200

This causes the sun to appear to move higher and then lower in the sky as the day progresses

What is Earth's rotation?

200

These signs of a chemical reaction occur when fireworks are set off

What are heat, light, and sound?

200

To maintain a constant overall total

What is conservation?

300

When enough force is applied to an object, it can change the object's --

What are speed or direction?

300

A change in position or location

What is movement?

300

These movements cause objects in our sky to appear differently

That is the rotation and revolution of Earth and the Moon

300

A substance that takes part in and undergoes change during a reaction

What is a reactant?

300

This energy is stored in all compounds and potentially released in chemical reactions

What is chemical energy?

400

Separate forces that combine to cancel each other out or make a net force of zero

What are balanced forces?

400

This is produced the faster you rub your hands together

What is increased heat energy?

400

An imaginary line that a sphere rotates around

What is an axis?

400

OF these, this is the one that is NOT evidence of a chemical reaction-- formation of a precipitate, change in state of matter, production of light, change in temperature

What is change in state of matter?

400

This is what we call it when the number and type of atoms of reactants is equal tothe number and type of atoms of products

What is a balanced chemical equation?

500
Net force is NOT zero

What are unbalanced forces?

500

Moving energy from oneobject or material toanother, or from one form to another

What is energy transfer?

500

The path an object takes as it revolves around another object in space

What is its orbit?

500

Physical and chemical characteristics of matter used to describe or identify a substance

What are properties?

500

A strong chemical bond that is formed when atoms share pairs of electrons

What is a covalent bond

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