Podcast
Questions and Answers
Bill Nye, the ______ Guy, explains that matter is everything around us, and it comes in three phases: solid, liquid, and gas.
Bill Nye, the ______ Guy, explains that matter is everything around us, and it comes in three phases: solid, liquid, and gas.
Science
The only difference between molten steel, melted steel, liquid steel, and solid steel is ______, with the atoms moving at different speeds.
The only difference between molten steel, melted steel, liquid steel, and solid steel is ______, with the atoms moving at different speeds.
energy
The ______ in our cars changes from a liquid (gasoline) to a gas (vapor) when it's burned, and it's the same with balloons.
The ______ in our cars changes from a liquid (gasoline) to a gas (vapor) when it's burned, and it's the same with balloons.
gas
Changing a solid to a liquid to a gas requires ______, and this energy can be taken away or added to change the phase of matter.
Changing a solid to a liquid to a gas requires ______, and this energy can be taken away or added to change the phase of matter.
Signup and view all the answers
The ______ law of thermodynamics states that energy cannot be created or destroyed, only transferred from one place to another.
The ______ law of thermodynamics states that energy cannot be created or destroyed, only transferred from one place to another.
Signup and view all the answers
When molecules slow down, they get closer together, and unusual things can happen, such as a rubber ball ______ and an onion slicing into thin pieces when frozen in liquid nitrogen.
When molecules slow down, they get closer together, and unusual things can happen, such as a rubber ball ______ and an onion slicing into thin pieces when frozen in liquid nitrogen.
Signup and view all the answers
The three phases of matter are ______ (like ice), liquid (like water), and gas (like water vapor).
The three phases of matter are ______ (like ice), liquid (like water), and gas (like water vapor).
Signup and view all the answers
Absolute zero is the temperature at which ______ motion stops, and it's colder than almost anything imaginable.
Absolute zero is the temperature at which ______ motion stops, and it's colder than almost anything imaginable.
Signup and view all the answers
Solids have molecules moving ______ and packed closely together, liquids have molecules moving a little faster, and gases have molecules moving very fast.
Solids have molecules moving ______ and packed closely together, liquids have molecules moving a little faster, and gases have molecules moving very fast.
Signup and view all the answers
Carbon dioxide gas is created by mixing ______ and baking soda, and it's the same gas that bubbles out of soft drinks.
Carbon dioxide gas is created by mixing ______ and baking soda, and it's the same gas that bubbles out of soft drinks.
Signup and view all the answers
Study Notes
• Bill Nye, the Science Guy, explains that matter is everything around us, and it comes in three phases: solid, liquid, and gas.
• The only difference between molten steel, melted steel, liquid steel, and solid steel is energy, with the atoms moving at different speeds.
• The gas in our cars changes from a liquid (gasoline) to a gas (vapor) when it's burned, and it's the same with balloons.
• Changing a solid to a liquid to a gas requires energy, and this energy can be taken away or added to change the phase of matter.
• When matter changes phase, the energy is either added or removed, and this process is demonstrated with a burner heating liquid water to turn it into water vapor.
• The same process is demonstrated in reverse, using a freezer to remove energy from liquid water and turn it into solid ice.
• The first law of thermodynamics states that energy cannot be created or destroyed, only transferred from one place to another.
• A thermometer is used to measure the temperature of a room, and a freezer is used to pump heat from the freezer to the room, changing the phase of matter.
• Phase change is demonstrated with a popsicle, which changes from a liquid to a solid when energy is removed.
• Bill Nye explains that changing a solid to a liquid to a gas always requires energy, and this energy can be added or removed to change the phase of matter.
• Liquid nitrogen is used to demonstrate phase change, as it boils at -196 degrees Celsius and changes from a liquid to a gas without the need for a burner.
• When molecules slow down, they get closer together, and unusual things can happen, such as a rubber ball shattering and an onion slicing into thin pieces when frozen in liquid nitrogen.
• The three phases of matter are solid (like ice), liquid (like water), and gas (like water vapor).
• Johnny Atom is a character used to explain the concept of matter and phase change, with a song that summarizes the three phases of matter.
• The "Absolute Zero Hour" segment explains that absolute zero is the theoretical temperature at which all matter would have zero entropy, but it's not possible to reach in reality.
• Bill Nye demonstrates the concept of pressure using a ball filled with air connected to a pressure gauge, showing how the gauge reads higher when the molecules are moving faster and lower when they are moving slower.
• Dry ice is used to demonstrate how the molecules slow down when cooled, resulting in a lower pressure reading on the gauge.
- Absolute zero is the temperature at which molecular motion stops, and it's colder than almost anything imaginable.
- At absolute zero, there is no molecular motion, and the pressure reading would be extremely low.
- Scientists have not been able to reach absolute zero, but they have come within 1/1000th of a degree Celsius.
- It's impossible to reach absolute zero because there is always a path for heat to get from the Earth to the object being cooled.
- The concept of absolute zero is more of an idea than a real thing that can be achieved.
- In an experiment, a ball of air is cooled using a special freezer, but it can't reach absolute zero because of the heat from the Earth.
- The phase of matter changes depending on the temperature and pressure, with molecules moving slower or faster accordingly.
- Solids have molecules moving slowly and packed closely together, liquids have molecules moving a little faster, and gases have molecules moving very fast.
- In an experiment, a cup of boiling water and two cups of sugar create a phase change, resulting in rock candy.
- Solid carbon dioxide can be changed into a gas by putting it in warm water.
- In another experiment, a broomstick balance is used to prove that invisible gas is matter by weighing it.
- Carbon dioxide gas is created by mixing vinegar and baking soda, and it's the same gas that bubbles out of soft drinks.
- The gas is heavier than air and can be poured into a lunch bag, making it sink.
- In an experiment with molten wax, it's poured into a mold and cooled to create a solid pattern.
- In another experiment, silicon bronze is melted at 2,100 degrees Fahrenheit and poured into a mold to create a solid object.
- The song "Gas, Liquid, and Solid" explains the phases of matter, with elements changing shape depending on the temperature and pressure.
- Solids hold their shape, liquids take the shape of their container, and gases take the shape of their container.
- Many solids hold their shape even when hit with a water balloon.
- The elements can be combined with other matter to make a change that stays forever, or they can change from one form to another depending on the temperature.
- The ocean and air are made of molecules that change roles often, and matter is essential to life.
- Bill Nye, the Science Guy, hosts the educational program about the phases of matter.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about the three phases of matter - solid, liquid, and gas - with Bill Nye, the Science Guy. Discover how energy changes the phase of matter, and explore the concepts of thermodynamics and absolute zero. From molten steel to dry ice, experiment with different materials and understand the role of temperature and pressure in phase change.
