Worksheetsعلوم سادس 2
Total questions: 52
Worksheet time: 1hrs 18mins
At which state, the particles have the least amount of energy?
solid
gas
vacuum
liquid
How are particles arranged in the solid?
far apart
tightly packed
loosely packed
Which of the following would cause the particles to spread out faster in the liquid?
decreasing the temperature
adding heat energy
removing heat energy
freezing the mixture
contract means to decrease in volume
خطأ
صواب
In which of the following substances will diffusion NOT occur?
water-liquid
milk-liquid
wood-solid
air-gas
What happens to particles in matter when heat is added?
they have no energy
the energy doesn't change
they have more energy
they have less energy
What are the two main types of energy?
kinetic
distance
reflection
What happens when substances expand or contract?
the particles undergo a chemical reaction
the space between the particles changes
the volume of their particles changes
the size of their particles changes
Which of the following is an example of kinetic energy?
a book on a book shelf
raindrops held in the cloud
dates hanging from a date tree
a skydiver falling towards the ground
How are particles arranged in a solid?
Regular arrangement, far apart from each other
Irregular arrangement, loosely packed
Regular arrangement, tightly packed
Regular arrangement, loosly packed
The liquid in this diffuser changes into a gas, then spreads out in the room. Explains how this occurs.
Heat is removed from the liquid
The liquid is stirred well
Ice is added to the liquid
Heat is added to the liquid
The faster the particles in an object move, the lower the temperature of the object.
خطأ
صواب
Which of the following describes particles of a hot solid object compared to those of a cold solid object?
Particles of a hot solid object vibrate faster than the particles in a cold solid object.
Particles of a hot solid object do not vibrate at all
Particles of a hot solid object vibrate slower than the particles in a cold solid object
Particles of a hot solid object vibrate the same as the particles in a cold solid object
In which of the following substances will diffusion not occur?
water - liquid
milk - liquid
wood - solid
air - gas
What happens to particles in matter when heat is added?
they have no energy
the energy doesn't change
they have more energy
they have less energy
Kinetic energy is the energy of a moving object
خطأ
صواب
During convection, cool air moves ............. warm air
above
below
to the right of
to the left of
An empty water bottle with a balloon is placed in a container of hot water. The balloon starts to inflate. The heat from the water would warm up the water bottle by ................
current
radiation
convection
conduction
Heat always moves from the colder object to the hotter object
خطأ
صواب
Which process would most likely heat up all the water in this kettle?
magnetism
conduction
radiation
convection
During convection, cool air moves ............. warm air
above
below
to the right of
to the left of
An empty water bottle with a balloon is placed in a container of hot water. The balloon starts to inflate. The heat from the water would warm up the water bottle by ................
current
radiation
convection
conduction
During convection, cool air moves ............. warm air
above
below
to the right of
to the left of
An empty water bottle with a balloon is placed in a container of hot water. The balloon starts to inflate. The heat from the water would warm up the water bottle by ................
current
radiation
convection
conduction
melting
liquid to solid
solid to liquid
solid to gas
condensation means water changes to gas
خطأ
صواب
During convection, cool air moves ............. warm air
above
below
to the right of
to the left of
How are particles arranged in a solid?
Regular arrangement, far apart from each other
Irregular arrangement, loosely packed
Regular arrangement, tightly packed
Regular arrangement, loosly packed
1- A student goes the beach. She thinks that at night the sand will get cooler faster than the
water. Which describes the student's thinking?
She is incorrect because the ocean releases heat to the air more quickly than land
She is incorrect because the specific heat of land and water are not different.
She is correct because the specific heat of water is higher than of the sandy
beach.
She is correct because the sandy beach will absorb thermal energy more slowly
than the ocean.
Why are polar regions colder than other regions of Earth?
A. They receive the same amount of solar energy per unit of surface area.
A. They receive more solar energy per unit of surface area.
They receive less solar energy per unit of surface area
Sea and land breezes are caused because ____.
air moves more easily over land than over water
air moves more easily over water than over land
the land heats and cools more quickly than the water
the land heats and cools more slowly than the water
What is the cause of the Coriolis Effect?
Earth's position in its orbit
the distance of Earth from the Sun
the tilt of Earth's axis
Earth's rotation
Wind is caused by differences in elevation.
False
True
Surface currents are caused by ____.
winds
warm water
cold water
upwelling
Changing air pressures help to create wind patterns and cause weather.
False
True
The Coriolis Effect helps distribute heat around the surface of Earth
False
True
Which sentence about an ocean current is correct?
Surface currents move vertically through the water.
Surface currents are caused by differences in water density
Upwelling moves water horizontally
Upwelling is caused by winds that blow on the ocean's surface
When cool, dense air from over the water flows inland, it's called a ____.
sea breeze
jet stream
polar easterly
land breeze
Steady winds between the equator and 30° latitude north or south are known as the ____.
trade winds
polar easterlies
jet stream
prevailing westerlies
An increase in ocean salinity can change _______ and create a current.
the wind speed across the surface
the Coriolis Effect
the density of water
the temperature near the poles
Which area will have higher Albedo
Water
Snow
Cold water with high salinity has high a density so it will sink to the bottom of ocean
False
True
A large circular pattern of ocean currents, in which water moves between areas of high and low water density
wind gyre
thermal gyre
ocean gyre
Elements such as oxygen, nitrogen, and carbon cycle through a system once.
False
True
Nitrogen, as it is found in the atmosphere, can be used by plants and animals
False
True
Which of the following does NOT move continuously through ecosystems?
nitrogen
energy
aluminum
water
Which of the following is NOT part of the water cycle?
precipitation
condensation
evaporation
nitrogen fixation
Which of the following steps in the nitrogen cycle takes place after animals eat plants?
Lightning changes nitrogen gas into nitrogen compounds.
Plants use nitrogen from the soil.
Bacteria on plant roots fix nitrogen to make it usable.
Decaying waste returns nitrogen to the soil.
Which of the following is NOT an example of how bacteria aid in the nitrogen cycle?
infecting tissue
changing nitrogen compounds into atmospheric nitrogen
breaking down the tissue of dead organisms
nitrogen fixation
Phytoplankton are said to release how much of the oxygen in Earth’s atmosphere?
more than 50%
less than 5%
between 15% and 20%
between 5% and 10%
Which process can release carbon to the air and into the soil?
cellular respiration
combustion
decomposition
photosynthesis
Which of the following is NOT a way that carbon is stored in the environment as a fossil fuel?
natural gas
oil
coal
water
