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Questions and Answers
Which property of matter can be described using the senses?
What causes a decrease in the density of a substance?
Which of the following states of matter has no fixed shape or volume?
How do the particles in a liquid move compared to those in a solid?
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What happens to atoms when more energy is added to them?
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What best describes the arrangement of particles in a solid?
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What happens to matter according to the law of conservation of matter?
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Which object would float in water based on the densities provided?
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Which of the following describes a property that would categorize as a chemical property?
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Why does hot air rise in a hot air balloon?
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Study Notes
Law of Conservation of Matter
- Matter can't be created or destroyed, it changes forms.
Solid Particles
- Atoms are packed closely, vibrate and have fixed shape and volume.
Density
- Density is mass divided by volume.
- Density unit: g/mL or g/cm³.
- Hot objects are less dense than cool objects.
- Water has a density of 1.0 g/mL.
- Objects less dense than water float.
- Objects denser than water sink.
States of Matter
- Matter exists in four states: solid, liquid, gas, and plasma.
- State of matter is a physical property.
Gas Particles
- Gas particles have no pattern and move freely.
- They take the shape and volume of the container.
Liquid Particles
- Liquid particles have no pattern and roll over each other.
- They take the shape of the container but have fixed volume.
Plasma Particles
- Plasma particles have no pattern and move very fast.
- Most common matter in the universe but uncommon on Earth.
- Found in lightning, fluorescent lights and stars.
Matter Properties
- Physical properties are observable and measurable, like color, mass, length, volume, density, and state.
- Chemical properties determine if a substance will react chemically.
Kinetic Energy Theory
- Atoms are always moving.
- The more energy added to atoms, the faster and further apart they move.
Why does density change?
- Heat spreads molecules out decreasing density.
- Removing heat brings molecules closer increasing density.
Ice vs. Water
- Ice is less dense than water because of its structure.
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Description
This quiz explores the fundamental concepts of matter and its states. It covers the law of conservation, density, and the characteristics of solids, liquids, gases, and plasma. Test your knowledge and see how well you understand the physical properties and behavior of matter!
