Answer the following question given this paragraph: Iron filings are attracted by a magnet. This is a physical property of iron but not of most other materials, including sand. How could you use this difference in physical properties to separate a mixture of iron filings and sand?. Q: Attraction of a material by a magnet is an example of what type of property? Choices: - thermal - chemical - transitive - physical A:
physical
Answer the following question given this paragraph: Q: What can damage animal tissues? Choices: - wind erosion - nervous stress - acid and water exposure - extreme pressure or temperature A:
extreme pressure or temperature
Q: Answer the following question given this paragraph: Some compounds form rigid frameworks called crystals. Other compounds form individual molecules. A molecule is the smallest particle of a compound that still has the compound's properties. Q: Some compounds form rigid frameworks called what? Choices: - grids - ions - chemicals - crystals A:
A: crystals
Question: Answer the following question given this paragraph: A Punnett square is a chart that allows you to easily determine the expected percentage of different genotypes in the offspring of two parents. An example of a Punnett square for pea plants is shown in Figure below . In this example, both parents are heterozygous for flower color ( Bb ). The gametes produced by the male parent are at the top of the chart, and the gametes produced by the female parent are along the side. The different possible combinations of alleles in their offspring are determined by filling in the cells of the Punnett square with the correct letters (alleles). At the link below, you can watch an animation in which Reginald Punnett, inventor of the Punnett square, explains the purpose of his invention and how to use it. http://www. dnalc. org/view/16192-Animation-5-Genetic-inheritance-follows-rules-. html. Q: What is the name of the chart that allows you to easily determine the expected percentage of different genotypes in the offspring of two parents? Choices: - periodic square - DNA helix - Trafalgar Square - punnett square A:
Answer: punnett square
*Question*
Answer the following question given this paragraph: Female reproductive organs form before birth. However, they do not mature until puberty. Q: When do female reproductive organs mature? Choices: - at menopause - at birth - periomenopause - at puberty A:
**Answer**
at puberty
Q: Answer the following question given this paragraph: Water treatment is a series of processes that remove unwanted substances from water. The goal of water treatment is to make the water safe to return to the natural environment or to the human water supply. Treating water for other purposes may not include all the same steps. That's because water used in agriculture or industry may not have to be as clean as drinking water. Q: What is a series of processes that remove unwanted substances from water called? Choices: - water filtration - water dilution - water cleaning - water treatment A:
A: water treatment