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WorksheetsWHERE ELEMENTS COME FROM? UNIT 1 TEST 1.
Total questions: 37
Worksheet time: 1hrs 14mins
What is an example of a claim?
Ms. De La Torre's favorite season is Fall.
In the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process.
The data shows that when leaves are taken away from sunlight, they change colors.
What is an example of evidence?
Football players are 33% more likely to get injured than baseball players.
Football is more dangerous than baseball.
Baseball is a fun sport.
Which piece of evidence could be used to BEST support this claim:
High school students should be required to wear uniforms.
When adding everything up, a school uniform could end up costing more than $200.
A student reported, "Allowing us to wear our own clothes gives us a chance to show our unique style and independence."
At one school that recently required students to wear uniforms, attendance went up and bad behavior went down.
The statement "If a balloon gets warm, it will expand." is which of the following?
claim
evidence
reasoning
Copper tarnishing is an example of a ___________ change.
physical
chemical
which of these example is a physical change?
Which process is an example of a physical change?
Cutting Carrots into pieces and mixed in a salad
A peanut butter and jelly sandwich being digested
Sodium metal and water combining to form a compound and a gas
Sodium metal and chlorine gas combined to form table salt
Which process is a sign of a chemical change?
A rotting potato gives off a bad smell
A melting block of ice leaves a large puddle
A cloud quickly changes shape when blown by wind
A plaster statue breaks when it falls onto the floor
Which of the following is evidence for the Big Bang Theory?
the planets orbit the sun
the universe is expanding
Earth's surface is 71% water
the universe is shrinking
Which of these things happened first?
stars and galaxies formed
rapid expansion of the universe
heavy elements formed
our earth formed
How long ago did the universe begin?
13.8 billion years ago
4.6 billion years ago
10 million years ago
5 million years ago
The lighter elements, hydrogen and helium, were created
before the Big Bang
in the first few moments after the Big Bang
billions of years after the Big Bang
only after stars were formed
The heavier elements, like Fe, Si, and Mg were formed...
before the universe began
in the first few moments after the big bang
before stars were formed
in the interior of stars much later in the universe's timeline
A singularity is ....
a collection of stars
a cloud of gas
a young star
an infinitely small, hot area of infinite pressure and density
What process describes two small nuclei combining into a larger nucleus?
fission
fusion
alpha decay
beta decay
What process is described by the splitting of a nucleus into smaller nuclei?
fusion
fission
half-life
gamma radiation
What nuclear process is shown in the picture?
alpha decay
gamma emission
fusion
fission
Fill in the blanks: In nuclear _____, two ____ nuclei are ______ together to form one larger nucleus.
fission; large; split
fission; smaller; combined
fusion; smaller; combined
fusion; larger; split
Which subatomic particle has a POSITIVE charge?
Proton
Neutron
Electron
none of these
The two subatomic particles found in the nucleus are ____________________.
protons and electrons
protons and neutrons
neutrons and electrons
protons, neutrons, and electrons
Protons are labeled __________ in the diagram.
a
b
c
none of these
Which subatomic particle is neutral (with no charge)?
Proton
Neutron
Electron
none of these
Which subatomic particle is labeled "a" in the diagram?
proton
neutron
electron
orbital
Electrons are found in _____________.
the nucleus
the center
the electron cloud
An atom is ______________.
the smallest living organism
a subatomic particle
the smallest unit of matter
a philosopher from 420 B.C.
The subatomic particle labeled "b" in the diagram is ______________.
proton
neutron
electron
orbital
Which subatomic particle has a NEGATIVE charge?
Proton
Neutron
Electron
none of these
