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Science Chapter 8
Science Chapter 8
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Purposeful Design Chapter 8 Grade 4
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
Why is the orange floating?
There is a higher volume of water
It is less dense than the water
The water is not dense enough to hold it up
It is more dense than the water
2
What is the application of knowledge to accomplish a goal?
simulation
technology
division
chemistry
3
This wheel is bent. What type of change has occurred?
physical
chemical
4
What is the central core of an atom called?
proton
nucleus
neutron
electron
5
What is a molecule that is made up of 2 or more different elements?
a compound
a composition
an element
a molecule
6
What is a useful representation of something called?
an example
a sample
a model
a copy
7
This bike is made of shiny metal and it is light but sturdy. These are ___ properties.
chemical
physical
8
What is a negatively charged particle that orbits the nucleus of an atom?
a nucleus
an electron
a neutron
a proton
9
What is a positively charged particle in the nucleus of an atom?
a proton
a neutron
a nucleus
an electron
10
What is a substance that is made of only one particular type of atom?
particle
cell
element
molecule
11
What is the chart with all the elements on it called?
Newton's 3rd Law
The Table of Particles
The Table of Molecules
The Periodic Table
12
What is the neutral particle in the nucleus of an atom?
Nucleus
Neutron
Proton
Electron
13
What is another name for a chemical change?
a physical change
an explosion
a chemical reaction
a chemical symbol
14
What is the measure of how compact matter is?
temperature
distance
density
volume
15
What can you tell about the red liquid at the bottom of this container?
It is less dense than the water in the middle.
It is more dense than the oil on top.
It is less dense than the oil on top.
It is the least dense of the 3 liquids.
16
What are NaCl and CO
2
?
Chemical Formulas
Elements
Chemical Symbols
Compounds
17
What are the 1-2 letters that represent an element's name called?
The element
The Periodic Table
The atomic number
The chemical symbol
18
This ice is melting. Is this a ___ change.
chemical
physical
19
This wheel has rusted. This is a ___ property.
physical
chemical
