Physics
What does Newton's first law say?
Every body will remain in a state of rest or in uniform rectilinear motion until an external force acts on it.
What process changes a liquid to a gas?
Evaporation
What do plants need to perform photosynthesis?
Sunlight, water, and carbon dioxide
What are the words that are used to name people, animals, objects, or places?
NOUNS
What is the arithmetic mean of 5, 10, and 15?
10
What is the speed of light?
Approximately 300,000 kilometers per second
What is a mixture?
A combination of two or more substances that are not chemically combined
What do we call animals that live both in water and on land?
Amphibians
As a general rule, every paragraph contains a…
MAIN IDEA
What is the value of x in the equation 2x-1 = 9?
5
What is the unit of electric current?
Ampere
According to the law of conservation of mass, what would be the coefficients of the following reaction in order for it to be balanced?
___KClO3 ___KCl + ___O2
2, 2, 3
What do the initials DNA stand for?
Deoxyribonucleic Acid
What type of language uses imaginative, poetic, or symbolic expressions to enhance meaning?
FIGURATIVE LANGUAGE
Determine the area of a rectangle with a base of 5 cm and a height of 8 cm.
40 cm²
Why does the image become distorted when an object is placed in water?
This occurs due to the phenomenon called refraction, which simply deflects the path of light, making it appear to physically deform the object.
One way to treat stomach acidity is with substances known as antacids, which are generally bases or alkaline. What type of reaction do they produce?
Neutralization
What are the hormones released by the ovary?
Estrogens and progesterone
What is the group discussion technique in which different viewpoints are presented and argued?
DEBATE
If 4 workers take 3 hours to paint a wall, how many hours will it take 2 workers?
6 hours
What are the differences between the graphs Uniform Rectilinear Motion (URM) and Uniformly Accelerated Rectilinear Motion (UARM)?
The URM speed graph will always be constant, so it will simply be a straight line. The UARM speed graph will increase over time, and then it will curve.
Why is it that when a 300 kg tree burns, the remaining ashes weigh only 10 kg?
Because when the tree burns, 290 kg of carbon dioxide and water are produced.
What is the name given to food mixed with saliva in the first stage of digestion?
Bolus
What is a story called that explains the creation of the universe or involves conflicts between gods?
MYTH
What is the value of x in the equation x²-25=0?
x = 5 or x = -5