Word Problems
You have 5 apples, get 3 more. Total?
8
Next number: 2, 4, 6, … ?
8
What is the basic unit of life?
Cell
Name the gas produced when acids react with metals.
Hydrogen
What color do you get when you mix red and blue?
Purple
Train travels 60 km in 2 hours. Speed?
30 km/h
Today is Monday. What day 10 days later?
Thursday
What type of macromolecule are enzymes?
Proteins
What is the pH of a neutral solution?
7
What 5-letter word becomes shorter when you add 2 letters?
Short
John has twice pencils as Mary. Mary has 6. How many for John?
12
Sequence: 3, 6, 12, 24, ?
48
In humans, how many chromosomes are in a body cell?
46
Balance this equation: H2 + O2 → H2O
2H2 + O2 → 2H2O
What is the term for a word that reads the same backward as forward?
Palindrome
Rectangle length 10, perimeter 28. Width?
4
1, 4, 9, 16, 25, ?
36
A cell has 40 chromosomes. After mitosis, how many chromosomes are in each daughter cell?
40
What type of reaction occurs when a hydrocarbon burns in oxygen?
Combustion
Which weighs more: 1 kg of feathers or 1 kg of lead?
They weigh the same
Car travels 150 km in 3 h. How long for 250 km?
5 h
Each cat 4 legs. 7 cats total legs?
28
Explain the difference between an artery and a vein.
Artery carries blood away from heart (usually oxygenated), vein carries blood toward heart (usually deoxygenated)
A reaction has ΔH = +120 kJ. Is it endothermic or exothermic?
Endothermic
What has keys but can’t open locks?
Piano