Q2 BMA Exam 8th Grade 2024-2025

Front

What does the model represent?

Back

A compound.

Tags

NGSS.MS-PS1-1

Front

How does temperature affect chemical changes?

Back

A beaker of hot acid will corrode a metal faster than a cold beaker of the same acid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Why is an element considered a pure substance?

Back

An element contains only one type of atom.

Front

What happens to the mass of a box and crystal after the crystal is broken?

Back

The mass remains the same.

Tags

NGSS.MS-PS1-5

Front

What should a scientist do if their data does not support their hypothesis?

Back

Report his observations and conclusions honestly, clearly stating that the data did not support the hypothesis.

Tags

NGSS.HS-PS1-2

Front

What is an atom?

Back

The basic unit of a chemical element.

Tags

NGSS.MS-PS1-1

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the difference between an element and a compound?

Back

An element consists of only one type of atom, while a compound consists of two or more different types of atoms chemically bonded together.

Front

What is the freezing point?

Back

The temperature at which a liquid turns into a solid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is a hypothesis?

Back

A proposed explanation for a phenomenon, which can be tested through experimentation.

Tags

NGSS.MS-PS1-2