TCAP Science

The central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• core

• center

Particles in an atom that are neutral and have no charge are

• negatrons

• electrons

• neutrons

• protons

A particle that moves around the nucleus is a(n)...

• Proton

• Neutron

• Electron

• Quark

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

What happens to the particles of a substance when it changes from a solid to a liquid?

• The particles move closer together.

• The particles move farther apart.

• The particles stop moving.

• The particles disappear.

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DOK Level 1: Recall

In a science experiment, if you mix vinegar and baking soda and observe bubbles forming, what type of change is occurring?

• Physical change

• Chemical change

• State change

• No change

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DOK Level 2: Skill/Concept

Investigate how the phases of the Moon are related to its position relative to the Earth and Sun. Create a model to demonstrate the phases and explain how your model represents this celestial phenomenon.

• Use a basketball to represent the Moon and a flashlight as the Sun, showing how light illuminates the Moon.

• Draw pictures of the Moon in different phases without showing the Sun's position.

• Use a lamp and two balls to represent the Sun and Moon, but do not simulate the Earth's position.

• Create a computer simulation that includes the Sun, Earth, and Moon, showing how the Moon's orbit affects its phases.

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DOK Level 4: Extended Thinking

Design an experiment to differentiate between physical and chemical changes. Describe the steps you would take and the observations that would indicate a chemical change.

• Mix vinegar and baking soda, observe the formation of gas bubbles.

• Freeze water into ice, observe the change in state.

• Cut a piece of paper, observe the change in shape.

• Heat sugar without burning, observe the melting.

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DOK Level 4: Extended Thinking

What is the unit of mass in the International System of Units (SI)?

• Pound

• Ounce

• Kilogram

• Liter

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DOK Level 1: Recall

Which of the following is an example of a chemical change?

• Melting ice

• Dissolving salt in water

• Burning wood

• Freezing water

Tags

DOK Level 2: Skill/Concept