Molecules Matter

Imagine you're a scientist in the world of One Piece, like Vegapunk or Caesar Clown. Which of the following best describes a compound?

• A single type of atom

• A mixture of different elements

• A substance made of two or more different types of atoms bonded together

• A solution of various substances

Answer explanation

A compound is defined as a substance made of two or more different types of atoms bonded together, distinguishing it from single atoms or mixtures. Therefore, the correct choice is that it is a substance made of different types of atoms.

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DOK Level 1: Recall

Imagine you're a tiny molecule, like Luffy or Zoro, diving into a pool of water. What happens to you when you dissolve?

• You form a new solid

• You break apart and spread evenly throughout the water

• You stop moving

• You become larger

Answer explanation

When a substance dissolves in water, its molecules break apart and disperse evenly throughout the water, allowing for a homogeneous solution. This is why the correct answer is that they break apart and spread evenly.

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DOK Level 2: Skill/Concept

Hey One Piece fans! Imagine Luffy and his crew are on a quest to discover the secrets of water on their journey. Can you help them by identifying the atomic composition of a water molecule?

• Two hydrogen atoms and one oxygen atom

• One hydrogen atom and two oxygen atoms

• Two oxygen atoms and one nitrogen atom

• One oxygen atom and two nitrogen atoms

Answer explanation

A water molecule consists of two hydrogen atoms bonded to one oxygen atom, making the correct answer 'Two hydrogen atoms and one oxygen atom'. This composition is essential for the unique properties of water.

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DOK Level 1: Recall

Imagine you're a tiny explorer like Elan, diving into the world of liquids! In the world of One Piece, which of the following best describes the arrangement of particles in a liquid, similar to how the Straw Hat Pirates navigate the Grand Line?

• Particles are tightly packed and vibrate in place

• Particles are loosely connected and can slide past each other

• Particles are spread out and move freely

• Particles are fixed in a rigid structure

Answer explanation

In a liquid, particles are loosely connected, allowing them to slide past each other. This arrangement gives liquids a definite volume but no fixed shape, distinguishing them from solids and gases.

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DOK Level 2: Skill/Concept

Imagine you're a detective like Sofia, trying to solve the mystery of matter in the world of One Piece. What is the key difference between an element and a compound?

• An element is made of one type of atom, while a compound is made of two or more types of atoms bonded together

• An element is always a solid, while a compound is always a liquid

• An element can be broken down into simpler substances, while a compound cannot

• An element is a mixture of different substances, while a compound is pure

Answer explanation

An element consists of only one type of atom, such as oxygen or gold, while a compound is formed from two or more different types of atoms, like water (H2O) or carbon dioxide (CO2), which are chemically bonded.

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DOK Level 2: Skill/Concept

Imagine you're a detective like Luffy and his crew from One Piece, observing the mystery of a solid turning into a liquid. What happens to the particles in this solid when it heats up and melts?

• They move closer together and become more organized

• They move farther apart and become less organized

• They stop moving completely

• They form a new solid structure

Answer explanation

When a solid is heated, its particles gain energy and move farther apart, leading to a less organized structure. This transition from solid to liquid involves increased movement and spacing between particles.

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DOK Level 2: Skill/Concept

Imagine you're a detective like Mason, or perhaps a navigator like Nami from One Piece, observing the mysterious transformation of a liquid into a solid. What do you think happens to the particles during this chilly change?

• They move closer together and become more organized

• They move farther apart and become less organized

• They stop moving completely

• They form a new liquid structure

Answer explanation

When a liquid is cooled, its particles lose energy, causing them to move closer together. This results in a more organized structure as they transition into a solid state, making 'They move closer together and become more organized' the correct choice.

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NGSS.MS-PS1-4

Imagine you're a scientist like Chopper in One Piece, trying to understand the process of evaporation. What happens to the particles of a liquid as it turns into a gas?

• They move closer together and become more organized

• They move farther apart and gain energy

• They stop moving completely

• They form a new solid structure

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Imagine you're a navigator like Nami from One Piece, trying to understand the concept of solubility. What happens when a substance is soluble in water?

• It forms a new solid

• It dissolves and spreads evenly throughout the water

• It remains unchanged and visible

• It evaporates immediately

Which of the following is true about molecules? Mark all that are correct.

• Molecules can be made of only one atom.

• Molecules can be made of only one type of element

• Molecules can be made of two or more elements

• Molecules cannot be made of three elements

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NGSS.MS-PS1-1