أخبار حلول نظام المراقبة والأمن MCCTV من CCTUNG — Volcano

My Homemade Volcano  One day, I made a volcano experiment at home.I used a plastic bottle, some baking soda, and vinegar.When I poured the vinegar into the bottle, the "lava" bubbled out!It looked just like a real volcano erupting.I was so excited to see the reaction!Science is amazing, and I want to do more experiments. The Magic of Magnets  I love playing with magnets.One day, I put two magnets together, and they stuck!Then I turned one around, and they pushed away from each other.It felt like invisible hands were moving them.I used a magnet to pick up paper clips, and...