Q: What is the term for a process that changes some chemical substances into others? Read this paragraph and choose the correct option from the provided answers: A chemical reaction is a process that changes some chemical substances into others. During a chemical reaction, the reactants are used up to create the products. Choices: - acid reaction - toxic reaction - chain reaction - chemical reaction A:
chemical reaction

Q: What occurs when waves interact with other waves? Read this paragraph and choose the correct option from the provided answers: Wave interference occurs when waves interact with other waves. Constructive interference increases wave amplitude. Destructive interference decreases wave amplitude. Choices: - resurgence - vibration - frequency - interference A:
interference

Q: What measurement is used to describe the amount of water vapor in the air? Read this paragraph and choose the correct option from the provided answers: Humidity is the amount of water vapor in the air. Relative humidity is the percent of water vapor in the air relative to the total amount the air can hold. The total amount depends on temperature. Choices: - precipitation - barometric pressure - heat - humidity A:
humidity

Q: In a smoke detector, a battery in the electric circuit creates what between the metal plates? Read this paragraph and choose the correct option from the provided answers: Most of us have at least one device in our homes that guards our safety and, at the same time, depends on radioactivity to operate properly. This device is a smoke detector. A typical smoke detector contains an electric circuit that includes two metal plates about 1 cm apart. A battery in the circuit creates a voltage between the plates. Next to the plates is a small disk containing a tiny amount (0.0002 g) of the radioactive element americium. The radioactivity of americium ionizes the air between the plates, causing a tiny current to. Choices: - magnetism - hydrogen - cooling - voltage A:
voltage