Earth Science
What THREE things are related to the relative positions of the Sun, the Moon, and Earth?
eclipses, tides, and the phases of the Moon.
What TWO things are typically found in the nucleus of an atom?
Protons and Neutrons
A graduated cylinder is typically used to measure?
Volume
The density of a liquid is commonly expressed using which units?
Grams per milliliter
What is typically considered a renewable energy resource?
Wind
What is the most likely consequence of the increasing levels of carbon dioxide in Earth’s atmosphere that result from the burning of fossil fuels?
Rising sea levels
Organisms that are in the same biological class must also be in the same
phylum
The tendency of an object to resist change in motion is called
inertia
What is true about sound waves with a high frequency?
They have a high pitch.
What best describes an element?
It is a pure substance consisting of one type of atom.
What is a stage in the life cycle of a massive star?
Supernova
it is the explosion of a high-mass star as it approaches the end of its life cycle.
What is a major product of photosynthesis?
Oxygen
The force of electrostatic attraction increases when what are brought closer together?
One positively charged object and one negatively charged object
Which of the following could be the pH of an acid?
Option (A) is correct. The pH scale ranges from 0 to 14. Acids have pHs that are less than 7. A pH of 7 is neutral. Bases have pHs greater than 7.
The DNA in an animal cell is found in what location?
Nucleus
What body system most directly defends the body against pathogens?
Immune system
What is an example of chemical weathering?
An iron fence rusting over time
When light passes from the air into a glass lens, the light changes direction. The phenomenon is known as
refraction
A battery in a circuit causes a lightbulb to glow by providing energy to which of the following in the wires of the circuit?
Electrons
Which THREE of the human body parts are directly involved in homeostasis?
The sweat glands, lungs, and kidneys
A ball is thrown straight up about fifty meters into the air. As the ball is traveling toward Earth and returning to the person who threw it, what is most likely happening to the ball?
The speed of the ball is increasing.
What is an example of a chemical change?
The cooking of an egg
A chemical change occurs when one substance turns into a new substance
Which THREE biological molecules in humans are metabolized by the body as sources of energy?
carbohydrates, fats, and proteins