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TEAM 1 QUIZZ
TEAM 1 QUIZZ
25 terms
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1
How does chemistry use math?
A) Math finds the names of elements.
B) Math helps make formulas and numbers about matter
D) Math helps study animals.
C) Math makes the periodic table.
2
Which of the following is an element?
D) Carbon dioxide
A) Salt
B) Sugar
C) Oxygen
3
Which of the following changes is reversible?
A) Rusting of iron
C) Melting chocolate
B) Burning a candle
D) Cooking pasta
4
What science is called the central science?
C) Chemistry
D) Math
A) Biology
B) Astronomy
5
Who was the first person to organized the chemical elements based on their properties?
Dmitri Mendeleev
J.J Thomson
Antonie Lavoisier
Niels Bohr
6
Who discovered the nucleus by the gold foil experiment?
Ernest Rutherford
Max Planck
J.J. Thomson
Niels Bohr
7
Which of the following is a pure substance?
A) Air
C) Water (H₂O)
D) Salad
B) Milk
8
How does biology use chemistry?
B) To study things inside living things.
C) To look at the stars.
A) To make metal and plastic
D)To count numbers
9
. How is a mixture different from a compound?
B) A compound retains the properties of its components
C) The components in a mixture can be separated physically
A) A mixture has a definite ratio
D) A compound is not made of element
10
How does chemistry help in medicine?
D)It builds bridges
A) It finds natural things.
B) It makes things to help or find sickness.
C) It watches animals.
11
Which option correctly classifies sand and iron filings?
D) Heterogeneous mixture
C) Element
A) Compound
B) Homogeneous mixture
12
Which philosopher proposed that atoms are indivisible components of matter?
Socrates
Aristotle
Plato
Democritus
13
Who discovered the electron?
Ernest Rutheford
Niels Bohr
Marie Curie
J.J Thompson
14
Which scientific proposed the planetary model of the atom?
A) J.J. Thomson
B) Ernest Rutherford
D) James Chadwick
C) Niels Bohr
15
Who establish the Law of Conservation of mass?
John Dalton
Antonie Lavoisier
Dmtri Mendeleev
Robert Boyle
16
How does chemistry help in farming?
A) It helps animals.
B) It studies DNA.
C) It makes things like plant food and weed killers.
D)It finds new vaccines
17
Which change is a physical change?
A) Toasting bread
B) Iron rusting
D) Wood burning
C) Ice melting
18
Which scientific discover the neutron?
A) J.J. Thomson
C) Niels Bohr
D)James Chadwick
B) Ernest Rutherford
19
What is the characteristic of a compound?
C) Has a fixed chemical formula
D) Always found in nature
A) Can be separated by physical means
B) Made of only one type of atom
20
What does physics give to chemistry?
A) A list of elements.
C) Names of body parts
B) Ideas and rules to understand matter and atoms.
D) Food and vitamins
21
Which of these is a chemical change?
B) Boiling water
C) Digesting food
D) Cutting hair
A) Crushing a can
22
What kind of property is “density”?
B) Biological
C) Nuclear
D) Physical
A) Chemical
23
Which of the following is an example of a homogeneous mixture?
D) Orange juice with pulp
B) Vinegar
A) Granite
C) Trail mix
24
Which of the following is an example of a mixture?
A) Pure water
D) Gold Correct answer
B) Table salt
C) Air
25
Which of these is NOT a sign of a chemical change?
D) Formation of a precipitate
B) Change in shape
C) Production of gas
A) Change in color
