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Questions (5)
Plastic is an example of a(n)
1. amorphous solid 2. high viscosity liquid 3. crystalline solid 4. fluid
9 answers
124 views
What is the difference between mass and weight of an object? (Short paragraph)
29 answers
212 views
Match each of the states of matter with the correct description.
Particle Arrangement: Particles are loosely connected and slide
17 answers
171 views
The use of synthetic materials has pros and cons. Do you think the pros of using synthetic materials outweigh the cons? Or, do
5 answers
205 views
What is the total number of headbands that can be made using the available ribbon?
0 answers
163 views
Answers (30)
Which of the following is NOT true? 1. Particles move differently depending on state. 2. Particles have the same amount of energy in different states. 3. Energy must be added or removed to change state. 4. Particles have different amounts of energy in
To separate a mixture of paper clips and sand, Joe should use 1. magnetic separation 2. distillation 3. decanting 4. wind separation
The measure of the AVERAGE energy of motion of particles in matter is known as
Plastic is an example of a(n)
You can only choose one.
Which of the following combinations are both best classified as heterogeneous mixtures? 1. dirt and air 2. water and air 3. salad and dirt 4. air and salad
All methods used to separate a mixture are based on the substances'
Which of the following is an example of a physical property? freezing point chemical composition ability to burn ability to react with metals
The TOTAL energy of all particles in an object is known as
"A" liquid? "A" gas?
Fix grammar
A ________ has no defined shape and a defined volume. A ________ has no defined shape and and no defined volume. 1. Gas 2. Solid 3. Liquid
What is the density of an object that has a mass of 34 grams and a volume of 17 milliliters? You may use a calculator if needed. 1. 0.5 g/mL 2. 51 g/mL 3. 578 g/mL 4. 2 g/mL
The formula for density is
The change from a gas to a liquid is called _____________.
Something that has mass and occupies space is known as ______________.
In science lab you are given the four substances listed below with their densities: Honey = 1.42g/cm^3 Olive oil = 0.90g/cm^3 Water = 1.00g/cm^3 Ethyl alcohol = 0.81g/cm^3 You are asked to combine all four substances in a beaker and observe how they
How is plastic made? Your response should be at least 2-3 sentences and include the following terms: Polymers, Synthetic Material, Natural Resources, Chemical Reactions.
What is a mixture? In three sentences, provide an example.
Observe the density column. In three sentences, why do you think the bolt is at the bottom and the ping pong ball is at the top?
Fill in the blank. The density of water is ______ g/cm3.
Put these options correctly in a three-part pyramid: Density, ÷, Mass, Volume, ×.
List five categories for physical properties and chemical properties respectively.
Is this from cold to hot?
Sort these heating time stages in the correct order: Gas, Melting, Solid, Freezing, Liquid, Vaporizing, Condensing
A little less formal.
Shorter.
Are you suuuure? Because this is a quiz I really need to ace.
Which expression is equivalent to the exponential expression below? (-3)^4 1. -(3 × 3 × 3 × 3) 2. -3 × -3 × -3 × -3 3. Another answer
Rewrite the following expressions using exponents. 3 × 3 × 3 × 3 × 3 × 3 = ?^?
