Is air a compound mixture or a element. compound
How are you going to experiment means how will you show your project in a real life situation like a penny being cleaned with different acids.
Answer:
Streak is tested by scraping a mineral across plate
Explanation: Hope this helps :)
Answer:
The Earth is made out of many things❤✌✔
Explanation:
The Earth is made out of many things. Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minera