Question

1. (2) new - things discovered/learned from the lab and summarize. (how did the lab help us learn?) • distinguish between mass, volume, density, weight... using your own words based off the lab. • explain how you would predict whether or not any substance (x) would float/sink in another substance (y) • summarize the lab and its findings.

Explanation:

1. Distinguishing Terms (from lab context):

• Mass: The amount of matter in an object (measured, e.g., in grams).
• Volume: The space an object occupies (e.g., cubic centimeters for solids, liters for liquids).
• Density: Mass per unit volume ($\text{density} = \frac{\text{mass}}{\text{volume}}$), describing how “compact” matter is.
• Weight: Force of gravity on mass (varies with gravity, e.g., less on the Moon).

1. Predicting Float/Sink (Substance X in Y):

Compare densities: If ${\text{density of X}} < {\text{density of Y}}$, X floats; if ${\text{density of X}} > {\text{density of Y}}$, X sinks.

1. Lab Summary (General):

The lab likely involved measuring mass/volume of objects/substances, calculating density, and testing buoyancy. Findings reinforce that density determines flotation (e.g., less dense objects float in more dense fluids) and clarifies distinctions between mass, volume, density, and weight through hands - on measurement and comparison.

Answer:

• Distinguish Terms:
• Mass: Amount of matter in an object.
• Volume: Space an object takes up.
• Density: Mass per unit volume ($\frac{\text{mass}}{\text{volume}}$), showing how “packed” matter is.
• Weight: Gravitational force on mass (changes with gravity).

• Predict Float/Sink:

Compare densities of X and Y. If $\text{density of X} < \text{density of Y}$, X floats; if $\text{density of X} > \text{density of Y}$, X sinks.

• Lab Summary:

The lab involved measuring mass/volume, calculating density, and testing buoyancy. It clarified that density determines flotation (less dense objects float in more dense fluids) and solidified the meanings of mass, volume, density, and weight through practical experimentation.