Name___________________________Teacher
A
B
I
Warm Up Week 33 (April 25-29)
Show your thinking for full credit!
Monday
Which of the following substances
represents an element?
1.
2.
3.
4.
5.
6.
When vinegar and baking soda are combined, bubbles and
foam are produced.
CO
Ag
HCl
CNDb
Xe
A 2, 3, 5 and 6
B 2, 5 and 6
C 1 and 4
D 1, 3 and 4
What evidence demonstrates that a chemical change has
occurred?
A A color change occurs.
B A gas is formed
C A solid is dissolved.
D A precipitate is formed.
Tuesday
Which model shown above best represents the element
neon as a gas?
The chemical symbol Ca represents-
A Chlorine
B Cesium
C Carbon
A Model A
B Model B
C Model C
D Model D
D Calcium
M
Wednesday
Jefferson is implementing an investigation of
physical properties using samples of metals,
nonmetals, and metalloids. He used a battery, wires,
and a bulb to test if each of the samples will
complete a circuit causing the bulb to light. Next, he
shined a bright light on each of the samples.
Emilia performed an investigation on a 5 g sample of
an element. She recorded the following
observations.
Which physical properties is Jefferson investigating?
A streak and hardness
Based on the properties observed, Emilia should
classify this element as a/an –
B luster and conductivity
A compound
C metal
C streak and conductivity
B nonmetal
D metalloid
D hardness and luster
Thursday Use the information in the chart below to answer today’s questions.
Student
Emma
Hannah
Preston
Dawson
Description
chemicals made of one or more elements that are pure substances held together by chemical bonds.
mixtures of atoms and molecules in different combinations.
chemicals that are pure substances represented by symbols that have at least one capital letter.
chemicals that are formed when a temperature change happens or a precipitate forms.
Which of the following students best
describes an element?
A Emma
B Hannah
C Preston
D Dawson
Friday
Bennett is examining an object is science
class. It is solid, does not conduct, is
malleable but not ductile, and is very shiny.
The sample is most likely a –
Which student best describes a compound?
A Emma
B Hannah
C Preston
D Dawson
Bianca used a triple beam balance to find the mass of a
sample to be 12 grams. She then used a ruler to get the
Length, width, and height using centimeters. What is the
density of Bianca’s sample?
V= L x W x H
D= M/V
A 2 g/cm3
A nonmetal
B 0.5 g/cm3
B metalloid
C 24 g/cm3
C metal
D 9 g/cm3
D semi-conductor