Read the questions below and answer to the best of your ability.
Read the questions below and answer to the best of your ability.
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
Question 18
18.
Question 19
19.
Question 20
20.
Question 21
21.
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
Question 26
26.
Question 27
27.
Question 28
28.
Question 29
29.
Question 30
30.
Question 31
31.
Question 32
32.
Question 33
33.
Question 34
34.
Question 35
35.
Question 36
36.
What is the smallest unit of matter?
C. cell
A. atom
B. molecule
D. particle
Which of the following are examples of physical changes? (multiple answers)
Melting ice
Baking a cake
Burning wood
Mixing sugar and water
Which of the following is a characteristic of a solid?
Takes the shape of its container
Has indefinite shape and volume
Moves freely and independently
Definite shape and volume
According to the equation below, what happened to the carbon and oxygen?
C + O2 → CO2
They combined chemically to form a new compound.
They combined chemically to form carbon and oxygen.
They combined physically to form a new mixture.
They combined physically to form a new element.
Julia drew the structure of an atom, as shown below.
Which of these correctly represents the labeled parts, 1, 2, 3, and 4?
1: electron
2: proton
3: nucleus
4: neutron
1: nucleus
2: proton
3: neutron
4: electron
1: proton
2: electron
3: neutron
4: nucleus
1: neutron
2: electron
3: proton
4: nucleus
In the chemical formula for ammonia, NH3, what does the subscript 3 represent?
The number of nitrogen and hydrogen atoms in each molecule of ammonia
The number of hydrogen atoms in each molecule of ammonia
The number of ammonia molecules that will bond together
The number of nitrogen atoms in each molecule of ammonia
Why is water known as the "universal solvent"?
It dissolves all known substances.
It dissolves only solid substances
It dissolves the greatest number of substances.
It dissolves substances faster than all other solvents.
Water is the only compound on Earth that -
does not dissolve other substances
contracts when it freezes
commonly exists in all three states of matter
is denser as a solid than as a liquid
Which of the following explanations best describes why ice cubes float in a glass of water?
The water weighs more than the ice.
The ice weighs more than the water.
The ice is more dense than the water.
The water is more dense than the ice.
In the image below, droplets of rain water remain on a blade of grass. This is most likely a result of which of the following?
Solubility
Chemical change
Chemical reaction
Adhesion
What is the study of the Earth's atmosphere called?
A. meteorology
D. botany
C. astronomy
B. geology
What happens during the equinox?
A. Longest day of the year
D. No sunlight
C. Shortest day of the year
B. Day and night are approximately equal
What is the main process by which heat energy is transferred to Earth from the Sun?
D. Radiation
C. Evaporation
A. Conduction
B. Convection
All of the following terms describe which type of energy?
- Ultraviolet radiation
- Visible spectrum
- Infrared radiation
chemical energy
nuclear energy
mechanical energy
solar energy
At which location on the mountain would the air pressure be the greatest?
B
D
A
C
Why is it important for mountain climbers to use oxygen at high elevations?
There is little nitrogen in the air at high altitudes.
There is no air at the top of mountains.
The ozone layer is damaged at high altitudes.
There is less oxygen in the air at high altitudes.
Which statement correctly describes a difference between the mesosphere and the stratosphere?
The mesopshere contains fewer oxygen molecules than the stratosphere.
Air presssure is lower in the stratosphere than in the mesosphere.
Temperatures decrease with altitude only in the stratosphere.
The mesosphere has more active weather than the stratosphere.
The data table below shows the apparent air temperature in degrees Fahrenheit (°F). Apparent air temperature is how hot the air feels at different air temperatures and different relative humidities.
If the air temperature is 90°F and the relative humidity is 70%, the apparent air temperature is -
20°F
71°F
106°F
113°F
Astronomers view objects in space through scientific instruments known as -
D. barometers
B. hygrometers
A. microscopes
C. telescopes
The Moon produces no light, and yet it shines at night. Why is this?
The Moon reflects the light from the Sun.
The Moon rotates at a very high speed.
The Moon is covered with a thin layer of ice.
The Moon has many craters.
Based on the diagram, which season is occurring in the Southern Hemisphere of Earth?
A. Winter
D. Fall
B. Spring
C. Summer
Wilbur makes a science model to show the relative positions of the Sun, the Moon, and Earth during a full moon. Which arrangement shows their correct positions?
Tides are caused by the gravitational pull of the moon and the sun on Earth's -
equator
land surface
poles
surface waters
Starting nearest to the sun and with planet #1, which of the following answers below correctly states the planets in order.
Which of the following characteristics are unique to this planet?
liquid water
axial tilt
atmosphere
orbiting moon
Jenna is researching a celestial object for her Astronomy project. Using her notes below, what is the subject of her report?
- Tiny
- Made of rock and ice
- Thin atmosphere
- 5 moons
- No rings
- Orbits in the Kuiper Belt region
- Crosses into the orbit of another celestial object
A comet
A meteor
Mercury
Pluto
The diagram below shows the Sun and the planets in our Solar System. Which planets are considered the gas planets?
Mercury, Venus, Earth, Mars
Earth, Mars, Jupiter, Saturn
Neptune, Uranus, Saturn, Jupiter
Mercury, Mars, Neptune, Jupiter
Fossils are the remains or traces of ancient plants and animals.
True
False
Which of the following is an example of a renewable resource?
Coal
Natural gas
Solar energy
Nuclear power
Which of the following are all examples of nonrenewable energy?
Solar, wind, and petroleum
Hydropower, biomass, and oil
Oil, natural gas, and petroleum
Natural gas, petroleum, and solar
Fossil fuels are considered nonrenewable because they -
produce pollution
are no longer used by humans
often contain microscopic animals
take millions of years to form
The sun plays a fundamental role in the development of many energy sources. Which of the following energy sources is the sun not involved in creating?
Coal
Wind
Biomass
Geothermal
What type of energy can be generated by the wind turbine shown below?
Radiant energy
Chemical energy
Nuclear energy
Electrical energy
The production of electricity using moving water is generally much cleaner than that produced by burning fossil fuels. How is water used to generate electricity?
Atomic bonds between the elements holding the water molecule together are broken releasing electrical energy.
Water in motion has kinetic energy that is transformed by a generator into electrical energy.
When heated, the elements in water form ions that conduct electricity.
Energy is released from the nucleus of the atoms that combine to form the water molecule.
Which elementary school did you attend for 6th grade?
Canterbury Woods Elementary School
Fairfax Villa Elementary School
Little Run Elementary School
Mantua Elementary School
Olde Creek Elementary School
Wakefield Forest Elementary School
Other Virginia elementary school (includes Virtual Virginia)