Robert's favorite sport was: 1marbles
2a fox hunt
3tag

Giving out 20 points for whoever answers this

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.