science

Which of these describes a solid?

Justification: Solids have a fixed shape and do not flow or fill containers like liquids or gases.

• • a. It flows easily.

• • b. It has a fixed shape.

• • c. It fills the container.

  • d. It is invisible.

Tags

NGSS.MS-PS1-4

Which of these is a liquid?

• • Justification: Juice is a liquid because it can flow and take the shape of its container

• • a. Rock

• • b. Ice

• • c. Juice

• • d. Smoke

Tags

NGSS.2-PS1-1

What is inside a balloon filled with air?

• • Justification: Air is a gas, which fills the balloon and takes its shape.

• • a. Solid

• • b. Liquid

• • c. Gas (Correct)

• • d. Plasma

Which of these is NOT a state of matter?

• • Justification: Temperature is a measure of heat, not a state of matter.

• • a. Solid

• • b. Liquid

• • c. Gas

• • d. Temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which particle has a negative charge?

• • Justification: Electrons are negatively charged and orbit the nucleus.

• • a. Proton

• • b. Neutron

• • c. Electron

• • d. Nucleus

Tags

NGSS.MS-PS2-3

Where are protons found in an atom?

• • Justification: Protons are found in the nucleus at the center of the atom.

• • a. In the nucleus

• • b. Orbiting the nucleus

• • c. Outside the atom

• • d. In the electron cloud

Which of these particles has no charge?

• • Justification: Neutrons have no charge and are found in the nucleus with protons.

• • a. Proton

• • b. Neutron

• • c. Electron

• • d. Quark

Which of these describes an atom?

• • Justification: An atom is the smallest unit of matter and contains protons, neutrons, and electrons.

• • a. It is the smallest unit of matter.

• • b. It can be seen with the eyes.

• • c. It is always positive.

• • d. It is made of only electrons.

Tags

NGSS.MS-PS1-1

Which of these is part of the nucleus of an atom?

• • Justification: The nucleus is made of protons and neutrons.

• • a. Electron

• • b. Proton

• • c. Ion

• • d. Orbital

Tags

NGSS.MS-PS1-1

What happens to water when it freezes?

• • Justification: When water freezes, it becomes a solid called ice.

• • a. It turns into steam.

• • b. It becomes a gas.

• • c. It turns into ice.

• • d. It disappears

Tags

NGSS.MS-PS1-4