Best Questions: Science
Challenge rules:
choose only one answer in each of the 20 questions.
If you are sure about all your answers, tap See results at the bottom.
1
If I have $20 and my friend Sue gave me a present of $7, how much money do I have now?
$13
$72
$6
$27
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2
Which of the following is a natural number?
-2
-1
0
1
3
What celestial body is no longer considered a planet?
Mercury
Jupiter
Pluto
Neptune
4
Choose the smallest planet in the Solar System.
Venus
Mercury
Mars
Earth
5
(5 + 3) x 3=
14
13
24
11
6
What is the cube root of 27?
2
3
4
5
7
Continue the sequence: Maine, Maryland, Massachusetts, Michigan, Minnesota, ?
Nebraska
New York
Mississippi
Washington
8
20 - x = 18. What is x?
2
3
5
6
9
What metal is liquid at room temperature?
Gallium
Tin
Silver
Mercury
10
7.52 - 4.31 = ?
2
3
3.21
3.44
11
What does the “laughing gas” consist of?
Sulfur and hydrogen
Carbon and oxygen
Oxygen and nitrogen
Phosphorus and helium
12
Which of the following is a whole number?
-4
-3.5
0.75
0
13
What is the name for the outer layer of human skin?
Epidermis
Epilogue
Epinephrine
Epidemic
14
Define which five consecutive numbers equal to 22. 7 3 9 6 4 1 3 7 9 3 5 4 1 7 6 5
73964
79354
93541
41765
15
What natural phenomenon on Earth is caused by the Moon?
Tornadoes
Droughts
Tides
Halos
16
Some months have thirty days, some have thirty-one day. How many months have twenty-eight days?
February
January
October and February
All months
17
(11- 1) ÷ 2 =
10 1/2
5
9
20
18
What bone in the human body is broken more often than others?
Carpal bone
Tibia
Clavicle
Lower jaw
19
What is coulrophobia?
Fear of long words
Fear of god
Fear of flowers
Fear ofclowns
20
What is the chemical symbol for iron?
I
Ir
Fe
Sn
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