What do these two changes have in common? your breath becoming visible on a cold day
using a large magnet to remove pieces of iron from a junkyard
Select all that apply.
Both are changes of state.
Both are only physical changes.
Both are chemical changes.
Both are caused by cooling.
Submit

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.