WorksheetsLMS 8th grade Science Homework #3
Total questions: 20
Worksheet time: 56mins
Name
Class
Date
1.
What is the mass of a neutron?
a)
1 amu
b)
0 amu
c)
same as electron
d)
doesn't have any mass
2.
What is the formula to solve for the neutron?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
3.
Where is the neutron located?
a)
In the loose nucleus with the electron
b)
In the dense nucleus with the protons
c)
In the electron cloud
d)
The nucleus floats on orbitals
4.
How many neutrons does an element with an atomic number of 3 and a mass of 6.9 contain?
a)
6.9
b)
4
c)
3
d)
7
5.
What is the charge of the neutron?
a)
Negative
b)
Positive
c)
electrical charge
d)
Neutral (no charge)
6.
How many neutrons are in Phosphorus (P) ?
a)
15
b)
31
c)
16
d)
14
7.
Which element has 5 more protons than Oxygen (O)?
a)
Aluminum
b)
Lithium
c)
Chlorine
d)
Silicon
8.
Metals are solid at room temperature
a)
False
b)
True
9.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
10.
The word “luster” refers to which property of matter?
a)
The ability to conduct electrical or thermal energy
b)
Capable of being drawn out into thin wires
c)
The way a surface appears when it reflects light
d)
Suitable for being shaped by beating or rolling
11.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
12.
´Elizabeth was examining elements and their physical properties. She described an element is her science journal as having no shine, an insulator, and very brittle. What would this element be a metal, nonmetal, or metalloid?
a)
metal
b)
nonmetal
c)
metalloid
13.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
14.
This is an image of a _________.
a)
consumer
b)
scavenger
c)
decomposer
d)
producer
15.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
16.
What type of consumer is the wolf?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
17.
In what organelle is the genetic material found inside?
a)
Endoplasmic Reticulum
b)
Golgi Complex
c)
Nucleolus
d)
Nucleus
18.
What is the function of the vacuole?
a)
Sac that stores water, nutrients, and waste products
b)
Sac filled with digestive chemicals
c)
Jelly-like substance within the plasma membrane
d)
stack of membranes that packages chemicals
19.
Where does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
20.
I make proteins for the cell. What am I?
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
lysosome
100 %
