Eighth Grade Science S8P1.c LP3.1
by julius smith
| 5 Questions
Note from the author:
S8P1.c LP3.1
Jamal wanted to study the reactivity of six different metals, so he decided to conduct an experiment in the lab to further his investigation. He placed 5 grams of each metal into 200 milliliters of water and recorded how the metals reacted with water. Which part of his experiment produced empirical evidence?
A. when he recorded the observable changes to each metal
B. when he controlled the amount of water for each piece of metal
C. when he performed the experiment in a lab setting
D. when he chose the number of different metal types to test


A. Both magnesium and argon are solids at room temperature.
B. Mercury is liquid at room temperature.
C. Chlorine is liquid at room temperature.
D. Boron, copper, and nitrogen are gases at room temperature
A brick is cut into small pieces. Which physical property do the small pieces have in common with the brick from which they came?
A. density
B. length
C. shape
D. mass
Selena breaks a piece off the end of a stick she found and notes that a physical change has occurred. Which of the following properties of the remaining piece of the stick has changed?
A. weight
B. density
C. chemical composition
D. molecular arrangement
Luster, hardness, color, size, and temperature are all examples of
A. various phases of matter.
B. physical properties of matter.
C. different examples of matter.
D. chemical properties of matter.
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