Students complete nine fill-in-the-blank problems classifying matter as elements, compounds, and mixtures. The matching activity pairs oxygen, saltwater, carbon dioxide, and trail mix with their matter classifications and definitions.
Matching real examples to element, compound, or mixture classifications — with specific reasons — consolidates the three matter types into a usable framework for analyzing any substance encountered in science class.
Style:
Properties of Matter
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A pure substance made of only one type of atom is called an element.
2. Water is a compound because it is made of hydrogen and oxygen chemically combined.
3. A salad is a mixture because its parts can be physically separated.
4. Gold and oxygen are both examples of elements found on the periodic table.
5. Table salt has the chemical formula NaCl, which means it is a compound of sodium and chlorine.
6. A solution is a type of homogeneous mixture that looks the same throughout.
7. Trail mix is a heterogeneous mixture because you can see the different pieces.
8. In a compound, the elements are combined in a fixed ratio that does not change.
9. Unlike a compound, a mixture can be separated using physical methods like filtering.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Oxygen
→ Element — a pure substance made of only one type of atom
Homogeneous mixture — salt dissolved evenly throughout water
Saltwater
→ Homogeneous mixture — salt dissolved evenly throughout water
Heterogeneous mixture — different pieces can be seen and separated
Carbon dioxide
→ Compound — carbon and oxygen atoms chemically bonded together
Element — a pure substance made of only one type of atom
Trail mix
→ Heterogeneous mixture — different pieces can be seen and separated
Compound — carbon and oxygen atoms chemically bonded together
Properties of Matter
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) A pure substance made of only one type of atom is called an element.
2) Water is a compound because it is made of hydrogen and oxygen chemically combined.
3) A salad is a mixture because its parts can be physically separated.
4) Gold and oxygen are both examples of elements found on the periodic table.
5) Table salt has the chemical formula NaCl, which means it is a compound of sodium and chlorine.
6) A solution is a type of homogeneous mixture that looks the same throughout.
7) Trail mix is a heterogeneous mixture because you can see the different pieces.
8) In a compound, the elements are combined in a fixed ratio that does not change.
9) Unlike a compound, a mixture can be separated using physical methods like filtering.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Oxygen
→ Element — a pure substance made of only one type of atom
Homogeneous mixture — salt dissolved evenly throughout water
Saltwater
→ Homogeneous mixture — salt dissolved evenly throughout water
Heterogeneous mixture — different pieces can be seen and separated
Carbon dioxide
→ Compound — carbon and oxygen atoms chemically bonded together
Element — a pure substance made of only one type of atom
Trail mix
→ Heterogeneous mixture — different pieces can be seen and separated
Compound — carbon and oxygen atoms chemically bonded together
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
Auto-graded
Retry anytime
🏆
Questions Correct
0
Correct
0
Incorrect
0
Skipped
0:00
Time
0%
Score
Review Your Answers
See what you got right, missed, or skipped.