8th Grade Science Review #3

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What is the process of meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically diverse gametes (sperm or eggs).

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What is a scientific experiment?

Back

A scientific experiment is a procedure carried out to test a hypothesis, where variables are controlled to observe the effects of changes.

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What is the purpose of replicating an experiment?

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The purpose of replicating an experiment is to confirm the results and ensure that they are reliable and valid.

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What is a survey in research?

Back

A survey is a method of collecting data by asking people questions to gather information about their opinions, behaviors, or characteristics.

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What does it mean to make an inference?

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To make an inference means to draw a conclusion based on evidence and reasoning rather than from explicit statements.

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What is a variable in an experiment?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types and can affect the outcome of an experiment.

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What is the difference between sunny days and rainy days in a data set?

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The difference between sunny days and rainy days in a data set can be calculated by subtracting the number of rainy days from the number of sunny days.

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What is a hypothesis?

Back

A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

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What is the significance of genetic information in flowering bushes?

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Genetic information determines the traits of flowering bushes, such as flower color, and is passed from parent plants to offspring.

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What is the role of a scientist in conducting experiments?

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The role of a scientist is to design experiments, collect data, analyze results, and draw conclusions to advance knowledge in a field.