Matter Basics
What type of matter has a fixed composition and uniform properties?
What is a pure substance
Which subatomic particle has a positive charge?
What is a proton.
What type of bond forms when electrons are shared?
Answer: A covalent bond.
What is a covalent bond.
What is the formula for speed?
What is Speed = distance ÷ time.
What is the unit for mass?
What is Kilogram (Kg)
Is saltwater a pure substance or a mixture?
What is a mixture.
How many valence electrons does oxygen have?
What is Six valence electrons.
What type of reaction forms one product from two or more reactants?
What is a synthesis reaction.
What is the difference between speed and velocity?
What is Velocity includes direction; speed does not.
In which type of circuit does current have more than one path?
What is a parallel circuit.
Milk is best classified as a solution, colloid, or suspension?
What is a colloid.
What charge does a sodium ion usually have?
What is a +1 charge.
What type of reaction is shown below?
2H₂ + O₂ → 2H₂O
What is a synthesis reaction.
A car travels 120 meters in 10 seconds. What is its speed?
What is 12 m/s.
Which circuit will still operate even if one or more bulbs are broken?
What is parallel circuit.
Give one sign that a chemical change has occurred.
What is Gas formation, color change, temperature change, or new substance formed.
How is an ion different from a neutral atom?
What is An ion has gained or lost electrons and has a charge.
Balance this equation:
__H₂ + __O₂ → __H₂O
2H₂ + O₂ → 2H₂O
What happens to acceleration if force increases and mass stays the same?
What is Acceleration increases.
Which circuit has only one path?
What is Series circuit
What happens to someone weight and mass when the go to another planet?
Why do elements in the same group have similar properties?
What is they have the same number of valence electrons.
Why must chemical equations be balanced?
What is to follow the Law of Conservation of Mass.
According to Newton’s Third Law, what happens when you push on a wall?
.
What is the wall pushes back with equal force
Why does a parallel circuit keep working even if one bulb goes out?
What is because each bulb has its own separate path for current to flow.