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WorksheetsScience STAAR Review
Total questions: 15
Worksheet time: 45mins
What are positively charged particles found in the nucleus of an atom called?
Neutrons
Electrons
Protons
Photons
What is the charge of electrons?
Negatively charged
Positively charged
Neutrally charged
Variable charge
What is the formula for calculating acceleration?
Acceleration = (Final velocity - Initial velocity) / Time
Acceleration = (Initial velocity - Final velocity) / Time
Acceleration = Final velocity / Time
Acceleration = (Final velocity + Initial velocity) / 2
What is the term for a change in which one or more substances are converted into different substances?
Chemical reaction
Physical change
Phase transition
Chemical equilibrium
What is the term for the amount of matter in an object?
Weight
Volume
Density
Mass
What is a sign that a chemical reaction has occurred?
Bubbles of gas appear
The temperature remains constant
The color of the substance stays the same
The mass of the substance increases
What is the charge of neutrons?
Positive charge
Negative charge
No charge (neutral)
Variable charge
What is the central region of an atom where its neutrons and protons are located?
Nucleus
Electron Cloud
Orbital
Shell
How do you calculate speed?
Speed = Distance + Time
Speed = Distance - Time
Speed = Distance / Time
Speed = Time / Distance
What is the law of conservation of mass?
Mass is neither created nor destroyed in a chemical reaction.
Mass can be created but not destroyed in a chemical reaction.
Mass can be destroyed but not created in a chemical reaction.
Mass is only conserved in physical changes, not chemical reactions.
What is the process called when a solid changes directly to a gas?
Condensation
Sublimation
Evaporation
Melting
What is the term for the force of gravity acting on an object?
Mass
Weight
Force
Gravity
What is the unit of speed in the metric system?
Kilometers per hour (km/h)
Meters per second (m/s)
Miles per hour (mph)
Feet per second (ft/s)
What term describes the changes in the Moon's appearance when it increases in size?
Waning
Crescent
Waxing
Gibbous
What are the three main subatomic particles in an atom?
Protons, neutrons, and electrons
Protons, electrons, and positrons
Neutrons, electrons, and neutrinos
Protons, muons, and quarks
