Worksheets6th Grade Pre/Post Test
Total questions: 80
Worksheet time: 10hrs 12mins
Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.
Which of the variables is dependent?
amount of money raised
number of books
Our investigation question is "How does changing the soil affect the growth of the sunflower plant?". Which variable should be kept the same?
the type of soil
the amount of water that you give to each plant
neither
both
Sunflower A1 is has sprouted, the sprout is bent and white- is an example of what type of observation?
Qualitative
Quantitative
What does it mean to interpret the data?
To see how the data applies to the world around us
To answer our investigation question
To use the data to solve a problem
All of the above
How does the height of an inclined plane affect the distance a toy car Travels.
Independent Variable (a)
Dependent Variable (b)
Constant (c)
___________ is the grouping together of items that are alike in some ways.
Classifying
predicting
infering
observing
Which two things affect gravity?
Mass and distance
Weight and distance
Weight and mass
The amount of matter in an object is:
Weight
Matter
Mass
Gravity
In which model of the solar system does the sun revolve around Earth?
geocentric model
heliocentric model
Copernican model
Aristarchan model
Which term best describes the shape of the orbits of planets in our solar system?
circular
elliptical
spherical
centripetal
The sun and all of the bodies that orbit the sun make up the
solar system
galaxy
universe
planetary system
True or False: The moon phases are caused by the moon's orbit around the earth.
True
False
What moon is letter A?
First Quarter
Full Moon
Last/3rd Quarter
Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?
radiant, chemical, electrical
electrical, kinetic, radiant
electrical, chemical, kinetic
radiant, electrical, mechanical
What is Energy?
The ability to do anything
The ability to cause change
The investigation of nature
A fact of life
How much solar energy is absorbed by the atmosphere?
16%
4%
7%
What percentage of solar energy is reflected by clouds?
4%
100%
20%
The transfer of energy by waves or particles is called
conduction
convection
radiation
insulation
Conduction
Convection
Radiation
The smallest unit of matter.
molecule
proton
atom
density
Protons, neutrons, and electrons are --
friends
subatomic particles
parts of a battery
submarine particles
The # of protons = the # of --
electrons
neutrons
atoms
molecules
2E2Fg3Hi4
The layer of gases surrounding the earth is called the
Atmosphere
Lithosphere
Biosphere
Hydrosphere
Which pie chart MOST accurately reflects the information in the table?
Look at the data table. Which graph below best represents the most abundant elements in the Earth's crust?
Water is a polar molecule. This means that the water molecule has-
electrically charged area
Two hydrogen and one oxygen
poles in the atoms
Water's attraction to other substances is called-
sticking
molecule
cohesion
adhesion
Why is water often called a Universal Solvent?
ice floats on water
Water is polar and therefore dissolves many other substances
water exists in three states of matter
water has adhesive and cohesive properties
How many Compounds are Listed?
HCL, Na, H2SO4, FE, NaCl, H2O
4
6
8
16
Rain washing soil away from a hillside is an example of
Abrasion
Erosion
Deposition
Weathering
The process of eroding or being eroded by wind, water, or other natural agents. _______________________
Runoff
Sun
Landforms
weathering
Which statement correctly describe the properties of air? Select three.
Air has mass but no weight.
Air pressure is created by the weight of the atmosphere pushing on Earth’s surface.
Pressure is a measure of how tightly molecules are packed.
Denser air is heavier than less dense air.
Air is less dense at higher altitudes.
On a warm summer day, a severe storm happens, and a tornado forms.
Which layer of the atmosphere is experiencing this storm?
troposphere
stratosphere
mesosphere
thermosphere
During an evening hike, you see a shooting star just like the one pictured here.
In which layer of the atmosphere does this shooting star occur?
troposphere
stratosphere
mesosphere
thermosphere
A weather front occurs when two air masses of differing temperatures meet. When a cold air mass meets a warm air mass, for example, what will happen to the warm air?
It will rise.
It will sink.
It will reverse directions.
Nothing will happen.
To prepare for the first day of school, Jeremy watches the weather forecast on television. The weather map he sees is shown.
If Jeremy lives at point _______, he can expect mild weather conditions for his first day of school.
Y
W
Z
X
Fey measures wind speed every fifteen minutes for one hour in her back yard. Her data is recorded in the table.
As Fey takes her last two measurements she notices that the temperature drops suddenly. Which of the following weather predictions would be best for Fey to make?
A hail storm is approaching.
The air's humidity is decreasing.
A tsunami is approaching.
A cold front is moving in.
What is a body of water that combines freshwater from rivers and lakes with saltwater from the ocean?
Estuary
Floodplain
Wetland
Tributary
Select the 3 bodies of water that Virginia watersheds drain into.
Chesapeake Bay
Gulf of Mexico
Lake Michigan
North Carolina Sound
Atlanta often has smog warnings during the summer. The city cautions citizens against being outside too long when smog levels are high. How can the city of Atlanta reduce smog levels?
by increasing the use of fossil fuels
by decreasing the use of solar power
by decreasing the number of individual cars and increasing the number of buses
by increasing the number of individual cars and decreasing the number of buses
Which of the following resources would be considered renewable?
coal
wind
metal ore
natural gas
Clothes are often made from cotton, which is grown from a plant. What kind of resource is cotton?
renewable
nonrenewable
mineral
chemical
Global warming, the increase of Earth's average surface temperature, can be affected by the
Tyndall effect
greenhouse effect
ozone effect
precipitation effect
How is the atmosphere involved in the greenhouse effect?
It transforms light energy from the Sun into thermal energy that warms the surface of Earth.
Gases in the atmosphere trap and redirect heat reflected from the surface of Earth.
Gases magnify the heat of the Sun as it passes down through Earth's atmosphere.
Heat from the surface of Earth is absorbed by gases and radiated into space.
The graph uses a red line to show the changes in temperature in each layer of the atmosphere.
How does the temperature in the stratosphere compare to the temperature in the mesosphere?
In the stratosphere, the temperature decreases.
In the mesosphere, the temperature increases.
In the stratosphere, the temperature increases.
In the mesosphere, the temperature decreases.
The temperature increases in both layers.
There is no way to read the temperature pattern.
What characteristic is common to the four outer planets in our solar system?
Low mass
High density
Fast revolution
Gaseous Composition
Hurricanes form in tropical waters between 8 and 20 degrees north and south of the equator. Hurricanes rarely form at higher latitudes because the water is too −
warm
deep
shallow
cold
Energy from the Sun is distributed around Earth by −
subduction and rift zones.
radiation and convection.
tectonic plates.
solar flares.
Which of the following best describes why the Moon orbits Earth?
The distance the Moon and Earth are from the Sun.
The energy reflected from the surface of Earth.
The winds generated on Earth by the energy of the Sun.
The gravitational attraction between the Moon and Earth.
Clouds are formed when millions of drops of water become suspended in the air. Which of the following is a step in the process of cloud formation?
Expansion of cold air.
Formation of carbon dioxide.
Condensation of water vapor.
Breakdown of atmospheric ozone.
Two sources of energy that are renewable and available in Virginia are −
natural gas and wind power.
coal and hydropower.
petroleum and solar power.
wind power and solar power.
Elements which are shiny, conduct electricity and heat are called
metal
nonmetal
metalloid
nonexistent
An element is made up of only one kind of:
atom
molecule
compound
The graphs show temperaure and barometric pressure data during a week for a city.
Based on the data, what change in the weather pattern can be seen Friday morning?
Storm clouds are increasing because of the pressure rise.
The sky is clearing because of a rise in temperature.
The sky is beginning to clear because of a pressure rise.
Rain clouds are moving in because of pressure lowering.
A student pushed a toy car along a level track toward a spring. The car collided with the spring, causing the spring to compress. After the spring decompressed, the car traveled backward a short distance before stopping.
Which statement accurately explains the energy transformation that occurred during the collision with the spring.
As the car is compressing the spring, elastic potential energy in the spring is converted to kinetic energy in the car.
As the car is compressing the spring, kinetic energy in the car is converted to elastic potential energy in the spring.
As the spring is releasing, kinetic energy in the car is converted to elastic potential energy in the spring.
As the spring is releasing, kinetic energy in the spring is converted to kinetic energy in the car.
A student drew a diagram to illustrate convection currents in the atmosphere.
How should the diagram be changed to accurately illustrate atmospheric convection currents?
Add coral and fish to the water to represent energy flow
Add trees and bushes to the land to represent transpiration
Add an arrow pointing up from the land to represent warm air rising and an arrow pointing down over the water to represent cool air sinking
Add an arrow pointing down over the land to represent cool air sinking and an arrow pointing up from the water to represent warm air rising
Engineers have designed a hydrogen fuel cell car which is powered by the energy that is released when hydrogen and oxygen combine. To do this, the car's engine transforms chemical energy into mechanical energy. The only substance released from these cars is water vapor.
A student claims that cars powered by the type of fuel have an advantage over cars powered by gasoline. Which statement supports the student's claim?
Hydrogen fuel cell cars do not contribute to air pollution because their only exhaust is water
Hydrogen fuel cell cars do not require maintenance like gasoline powered cars do
Hydrogen fuel cell cars use non-renewable energy sources
Hydrogen fuel cell cars can be designed in a variety of shapes
The picture shows a room with a ceiling fan and a fireplace. Heat from the fire warms the room. As fuel in the fireplace is burned, the fire gets smaller and then goes out. Then the air near the floor feels cooler. A person turns on the ceiling fan, and the air temperature near the floor begins to increase after the fan is turned on.
Which of these Best explains why the air temperature near the floor increases after the person turns on the fan?
Fires produce more thermal energy when fan blades rotate
The rotating fan causes warm air near the ceiling to move throughout the room by conduction
The rotating fan pushes warm air that rose to the ceiling by convection back down into the room
Warm air from inside the room is drawn back into the fireplace when fan blades rotate
A seaside community decides to build a barrier to reduce erosion and other damage to the beach ecosystem. The barrier needs to be able to withstand harsh winter winds and strong spring storms. Winds in the area usually produce a force between 3 and 10 newtons. Community leaders evaluate their options based on the strength and the cost of each barrier material and how often each material will need to be repaired or replaced.
Which material will be the best choice for building the barrier?
Natural Rock
Wood
Steel
Concrete
