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- 1. Multiple ChoiceWhich of the following is a sign that a chemical reaction has occurred?change in shapemeltingformation of a gasdissolving
- 2. Multiple Choiceability to allow heat to flowViscosityConductivityDensityMelting/Boiling Point
- 3. Multiple Choice
Julie is colleting information about the physical properties of a rock. She puts water in a graduated cylinder. Then she puts the rock into the cylinder. What information can Julie collect from the graduated cylinder?the rocks massthe rocks temperaturethe rocks texturethe rocks volume - 4. Multiple ChoiceMass, relative density, solubility, color, texture, state of matter, conductivity, etc.Physical stateInsulatorsPhysical PropertiesInferences
- 5. Multiple ChoiceThis variable in an experiment is the one being deliberately changed by the scientist.dependent variableindependent variabledatacontrol group
- 6. Multiple ChoiceCalculate the density of the cube.2 g/cm34 g/cm36 g/cm38 g/cm3
- 7. Multiple Choice
A student asked, "Which brand of battery lasts the longest?" What statement is the best hypothesis for this experiment?
If my toy train is left turned on, then it will run out of battery life.
If my toy train set is plugged into the wall, then the batteries will not be used.
If I change the batteries in my toy train set every week, then it will not run out of power.
If I use the Power Up battery in my toy train, then it will last longer than other batteries.
- 8. Multiple Choice
For scientific data to be considered accurate and reliable, most science experiments should be
Conducted as many times as possible
Conducted 3 times
Conducted only 1 time
Repeated no more than 2 times
- 9. Multiple Choice
Mr. Hewitt found an object that is bendable, conducts heat and electricity, and has a metallic luster. The object is most likely a ________.
metal
nonmetal
metalloid
gas
- 10. Multiple Choice
Which of the following statements about models is true?
Scientists use models to understand how systems work.
If an inaccurate scale model is used to create a structure, the actual structure will likely have problems.
A diagram is one example of a scientific model.
All of these statements are true.
- 11. Multiple Choice
A ____________ is a push or a pull on an object.
friction
force
magnet
- 12. Multiple Choice
This type of force resist motion between two surfaces that are pressed together
contact
gravity
friction
- 13. Multiple Choice
What will cause an object to move?
Applied forces
Balanced forces
Unbalanced forces
- 14. Multiple Choice
How does friction affect speed?
more friction decreases speed
more friction increases speed
less friction decreases speed
- 15. Multiple ChoiceWhat was the speed of the bus from point A-BA)12 m/sB)20 m/sC)10 m/sD)The bus is stopped, so its speed must be zero
- 16. Multiple Choice
What is the relationship between mass and inertia?
The greater an object's mass, the more inertia it has.
The greater an object's mass, the less inertia it has.
The smaller an object's mass, the more inertia it has.
There is no relationship between mass and inertia.
- 17. Multiple Choice
Which of Newton's Laws states that an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted on by a force?
1st
2nd
3rd
- 18. Multiple Choice
If the unequal opposing forces are applied to the cart at the same time, what will occur?
The cart will move to the left.
The cart will move to the right.
The cart will alternate between moving left and right.
The cart will remain stationary.
- 19. Multiple ChoicePushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate.Newton's 1st LawNewton's 2nd LawNewton's 3rd Law
- 20. Multiple ChoiceWhat is the definition of CONVECTIONWhen heat transfers through the heater or AC in your house.When heat transfers from objects that are touching.a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.Holding hands
- 21. Multiple ChoiceA student made a model of how the Earth, Moon, and Sun orbit. She used ping-pong balls
to represent each one. She painted each one a different color. Then, she placed the Moon
and Earth close together and the Sun much further away.What is one limitation of the student's model?She used the same size balls.She made earth orbit the sun.She moved the Sun away from the Earth and Moon. - 22. Multiple Choice
Gravity is a force of attraction between two or more masses. The gravitational attraction between the Sun and each of the planets is responsible for which of the following?
The amount of sunlight reaching the planets
The presence or absence of water on the planets.
The number of planets that can orbit the Sun.
The orbital motions of the planets around the Sun.
- 23. Multiple ChoiceThe force of gravity on Jupiter is a little more than 2 times the gravitational force on Earth. If an object has a mass of 50 kg and a weight of 490 N on Earth, what would be the object's approximate mass and weight on Jupiter?50 kg and 490 N100 kg and 490 N50 kg and 980 N100 kg and 980 N
- 24. Multiple Choice
What is the biggest difference between the Geocentric Model and the Heliocentric Model?
the shape of the planets' orbits
the movement of the moon
what is at the center, earth or sun
- 25. Multiple ChoiceThe greater mass a planet has,the greater the gravitational force it hasthe less gravitational force it hasgravitational force does not depend on mass
- 26. Multiple Choice
Which of the following aspects of the solar system contributes most to the motion of the planets
Friction with the atmosphere
Magnetic field around the planets
Gravitational attraction of the Sun
Radiation from nearby stars
- 27. Multiple ChoiceBuilt a telescope and made discoveries which changed astronomy; discovered 4 moons of JupiterGalileo GalileiAristotleWilliam HerschelClaudius Ptolemy
- 28. Multiple ChoiceWhat are the 3 major types of rocks?Igneous, Metamorphic, SedimentaryMetamorphic, Igneous, CementationBrown, Red, GrayStreak, Hardness, Breakage
- 29. Multiple ChoiceWhat is the order of the layers?inner core, lithosphere, mesosphere, outer core, asthenosphereasthenosphere, lithosphere, mesosphere, outer core, inner corelithosphere, asthenosphere, mesosphere, outer core, inner corecrust, core, mantle
- 30. Multiple ChoiceEarth's plates are...constantly moving and changing the face of the earthNever movesMoves seldom and very fastMoves when it feels like it
- 31. Multiple Choice
__________ is an energy resource that WILL NOT run out in the next several hundred years.
Renewable Energy Resource
Nonrenewable Energy Resource
Natural Resources
- 32. Multiple Choice
__________ is an energy resource that WILL run out in the next several hundred years.
Renewable Energy Resource
Nonrenewable Energy Resource
Natural Resources
- 33. Multiple ChoiceKinetic energy is energy that is inmotiona high placestoragethe dark
- 34. Multiple Choice
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
raw fuel
dinosaur dung
natural energy
fossil fuels
- 35. Multiple Choice
A battery-powered flashlight is used by a camper so that she can she after dark on a camping trip. Which of the sequences below illustrates the transformation that occurs inside the flashlight?
chemical energy → light energy → electrical energy
chemical energy → electrical energy → light energy
mechanical energy → chemical energy → electrical energy
electrical energy → chemical energy → light energy
- 36. Multiple Choice
Movers needed to move a heavy box from the bottom of some stairs to the top of the stairs. They placed a ramp over the stairs and pushed the box up the ramp.
Which best explains why the movers used a ramp to move the box?
The ramp reduced the amount of
force needed to move the box.
The ramp increased the height that
the box needed to be moved.
The ramp reduced the distance that
the box needed to be moved.
The ramp increased the amount of
friction needed to move the box.
- 37. Multiple Choice
The positive particles of an atom are
electrons
positrons
neutrons
protons
- 38. Multiple Choice
What is the atomic number?
the number of protons
the number of protons and neutrons
the number of neutrons
the number of protons and electrons
- 39. Multiple Choice
What is the number of protons in "F"
9
18
17
19
- 40. Multiple Choice
What particle identifies an element?
Number of Valence Electrons
Number of Protons
Number of Electrons
Atomic Mass
- 41. Multiple ChoiceSODIUMSSoNNa
- 42. Multiple Choice
A hypothesis is a
a measurable variable
"If ... then..." statement that is measurable
a conclusion
problem or question
- 43. Multiple Choice
What is the dependent variable?
What we measure
What we keep the same
What we change
- 44. Multiple Choice
What is wrong with this data table?
Bad title
No lines
No units
Doesn't start at 0
- 45. Multiple Choice
Based on the graph, how many more students are in the science club than the book club?
20
16
46
18
- 46. Multiple ChoiceWill a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.If I make a paper airplane from notebook paper, then it will fly faster than construction paper.Yes.No.I think the construction paper air plane will fly faster.
- 47. Multiple ChoiceWeathering and erosion are processes that constantly change Earth’s surface. How do weathering and erosion differ?Weathering acts quickly. Erosion acts slowlyWeathering acts underground. Erosion acts above ground.Weathering breaks down materials. Erosion moves materials.Weathering is caused by wind. Erosion is caused by water.
- 48. Multiple ChoiceWhich of the following explains how mountains are formed?Plates collide at divergent boundaries causing the crust to push upward.Plates collide at convergent boundaries causing the crust to push upward.Plates slide past each other at transform boundaries causing the crust to push upward.Plates collide at convergent boundaries causing the mantle to push upward
- 49. Multiple ChoiceWhy do plates move?Convection currents in the mantle cause plates to move.The outer core spinsThe inner core is magneticThe plates are floating on an ocean
- 50. Multiple ChoiceRock X is produced by "cooling". What type of rock is Rock X?Sedimentary RockMetamorphic RockSedimentIgneous Rock
- Answer choicesTagsAnswer choicesTags