Elevate Science 7th Topic 1 Lesson 1

Water, air, buildings, food, and everything visible and invisible has mass and takes up space. What is the word used to describe anything that has mass and takes up space?

• atom

• molecule

• solid

• matter

A pure substance is a single kind of matter. A(n) ____________ is made up of two or more substances that are together in the same place, but each substance keeps its own properties.

• mixture

• compound

• atom

• molecule

Examples of a homogenous and a heterogenous mixutre are

• Homogenous: mix nuts

  Heterogenous: mushroom soup

• Homogenous: sugar solution

  Heterogenous: fruit salad

• Homogenous: mixed vegetables

  Heterogenous: bread dough

• Homogenous: cup of coffee

  Heterogenous: fruit juice

What is described in this picture?

• Homogenous mixture

• Heterogenous mixture

• It is both homogenous and heterogenous

• None of these

What is described in this picture?

• Homogenous mixture

• Heterogenous mixture

• It is both homogenous and heterogenous

• None of these

In a heterogeneous mixture, you can:

• easily separate the individual parts

• not easily separate the individual parts: it's difficult

• drink it

• only call it a molecule

In a homogeneous mixture, you can:

• easily separate the individual parts

• not easily separate the individual parts: it's difficult

• drink it

• only call it a molecule

Is a bowl of candy a mixture, element, or compound?

• Mixture

• Element

• Compound

Is water, H₂O, a mixture, element, or compound?

• mixture

• element

• compound

Tags

NGSS.MS-PS1-1

Is salt water a mixture, element, or compound?

• mixture

• element

• compound