Question: The specialists studied two groups of larvae. Group L displayed all kinds of mutations while group D didn't. Which group of larvae had more changes in their DNA sequence?
Answer: Group L

Question: A group of middle school students is measuring the temperature of various liquids for a chemistry lab using a mercury thermometer. They have a beaker of boiling water, a beaker of ice water, and a beaker of water at room temperature. If the students move the thermometer from the boiling water to the room temperature water will the mercury level rise or fall?
Answer: fall

Question: David was working in his chemistry lab. He selected two isotopes, sample A and sample B. Sample A had longer half-life, but sample B had shorter half-life. After some time he checked sample A when its one half-life had passed. He noted it as sample A1. Then he came back to see it again when two half-lives had passed. He noted it as sample A2. Which sample would have more isotopes, sample A1 or sample A2?
Answer:
sample A1