Elements and Changes Web Quest

Name:

Date:

Partner:

🔬 Part 1: STILE Exploration - Elements and Compounds

Instructions: Work with your partner to access STILE and explore the "Elements and Compounds" module. Use the interactive activities and resources to answer the following questions.

1. What is the difference between an element and a compound?

2. Classify each substance as an element (E) or compound (C):

Oxygen (O₂):

Element

Compound

Water (H₂O):

Element

Compound

Gold (Au):

Element

Compound

Salt (NaCl):

Element

Compound

3. Using STILE's periodic table interactive, find three elements that are metals and three that are non-metals:

Metals: _____________, _____________, _____________

Non-metals: _____________, _____________, _____________

4. What happens to the properties of elements when they form compounds? Give an example from STILE.

⚡ Part 2: Physical and Chemical Changes Investigation

Instructions: Navigate to the "Physical and Chemical Changes" section in STILE. Watch the videos and complete the simulations before answering these questions.

5. Identify whether each change is physical (P) or chemical (C):

Ice melting:

Physical

Chemical

Burning wood:

Physical

Chemical

Cutting paper:

Physical

Chemical

Rusting iron:

Physical

Chemical

Dissolving sugar:

Physical

Chemical

6. What are three signs that indicate a chemical change has occurred?

1. _________________________________________________

2. _________________________________________________

3. _________________________________________________

7. Using STILE's virtual lab, describe what happens when you mix baking soda and vinegar. Is this a physical or chemical change? Explain your reasoning.

🤔 Part 3: Critical Thinking and Reflection

8. Real-world application: Choose one example from your daily life that involves both a physical AND chemical change. Describe both changes and explain why each is classified as physical or chemical.

9. Partner discussion: Why is it important for scientists to understand the difference between elements, compounds, and types of changes? Discuss with your partner and write your joint response.

10. Reflection: What was the most interesting thing you learned from using STILE today? What questions do you still have?