Question

in a gas, how are the particles typically arranged?
a. close together and not moving
b. packed tightly in and not moving
c. spread far apart in a regular pattern
d. sliding past one another with little space
question 3:
a student measures the same volume of three substances: a metal cube (solid), water (liquid), and air (gas). which physical property would likely be different for each?
a. volume
b. temperature
c. color
d. particle arrangement
p.s.s.a. 3 analyze matter through observations and measurements to classify materials (e.g., powders, metals, minerals, or liquids) based on their properties (e.g., color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, solubility, or density).
q1. a student tests different materials by shining a light on them. aluminum shines brightly, while wood does not. which property is the student testing?
a. solubility
b. reflectivity
c. magnetism
d. hardness
q2. a teacher gives students two unknown powders. powder a dissolves in water, but powder b does not. which property helps classify these powders?
a. density
b. solubility
c. reflectivity
d. conductivity
q3. a student tries to scratch glass with different minerals. only one mineral leaves a scratch. which property is being tested?
a. hardness
b. magnetism
c. density
d. solubility
q4. an electrician needs a material that allows electricity to flow through easily. which material would be the best choice?
a. plastic
b. rubber
c. copper
d. wood
q5. a magnet attracts a paper clip but does not attract an aluminum can. which property is being tested

Explanation:

• For the first question about gas particles, in a gas, particles are far - apart and move quickly. Option D is correct as it describes the nature of gas particles.
• For the second question, different states of matter (solid, liquid, gas) have different particle arrangements. So the physical property that would be different for the metal cube, water, and air is particle arrangement.
• For Q1, shining a light on materials to see which shines brightly tests reflectivity.
• For Q2, a powder dissolving in water or not is related to solubility.
• For Q3, scratching glass with minerals tests hardness.
• For Q4, copper is a good conductor of electricity among the given options.
• For Q5, a magnet attracting or not attracting objects tests magnetism.

Answer:

• First question: D. Sliding past one another with little space
• Second question: D. Particle arrangement
• Q1: B. Reflectivity
• Q2: B. Solubility
• Q3: A. Hardness
• Q4: C. Copper
• Q5: C. Magnetism