Exploring Mixtures and Solutions
Interactive Video
•
Science
•
2nd Grade
•
Practice Problem
•
Hard
Luluk Regita
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mixture?
A combination of two or more substances that are combined but do not chemically react.
A single substance that cannot be broken down further.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a heterogeneous mixture?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key characteristic of a homogeneous mixture?
Its components are easily separated by physical means.
Its components are uniformly blended, appearing as one single substance.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When sugar is stirred into water, it dissolves, but sand does not. What property explains this difference?
Solubility
Acidity
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to sugar molecules when sugar dissolves in water?
They break apart into pieces too small to see and spread evenly between the water molecules.
They settle at the bottom of the glass and do not mix with the water.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does sand not dissolve in water?
Sand molecules are non-polar and are not attracted to polar water molecules.
Sand chemically reacts with water to form a new compound.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You mix salt with water, and it dissolves completely. How could you prove the salt is still there without tasting it?
Add more salt until it no longer dissolves.
Evaporate the water, leaving the salt behind.
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