Scientific Investigation Yr 10 Science

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A quantitative observation involves the use of numbers to describe or measure a particular phenomenon. In this case, the other options, such as zoo animals and names, do not involve the use of numbers. Therefore, the correct answer is numbers.

Scientists usually state an hypothesis in an "If...then..." format. This is because an hypothesis is a proposed explanation or prediction for a scientific observation or phenomenon. By stating it in this format, scientists can clearly outline the cause-and-effect relationship they are proposing to test. This allows them to design experiments and gather data to either support or refute their hypothesis, leading to further understanding and advancement in their field of study.

Mass and weight are not the same thing. Mass refers to the amount of matter in an object, while weight is the force exerted on an object due to gravity. Mass is measured in kilograms, while weight is measured in newtons. The mass of an object remains constant regardless of its location, while the weight of an object can vary depending on the strength of gravity. Therefore, mass and weight are two distinct properties of an object.

To describe the length of a grain of rice, millimeters (mm) would be the appropriate unit of measurement. Millimeters are commonly used to measure small objects or distances, and they provide a more precise measurement for the length of a grain of rice compared to other units such as decimeters, meters, or kilometers.

10m is equal to 1,000 cm because there are 100 centimeters in 1 meter. Therefore, to convert meters to centimeters, we multiply the number of meters by 100. In this case, 10m multiplied by 100 equals 1,000 cm.

The correct answer is dependent, independent, and control. In experimental design, dependent variables are the outcomes or responses being measured or observed. Independent variables are the factors that are manipulated or controlled by the researcher. Control variables are the variables that are kept constant or held steady throughout the experiment to ensure that any changes observed are due to the independent variable. "Smooth" is not a type of variable in experimental design.

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The phrase "Number of Fruit Flies" would be called results because it refers to a quantifiable outcome or data that can be obtained by counting or measuring the quantity of fruit flies. The other options are either statements or actions related to fruit flies, but they do not specifically refer to a result or outcome.

Lauren can control where she places the plants, therefore the location of the plants is the IV. The location affects how the plants grow (DV).

Lauren can control where she places the plants, therefore the location of the plants is the IV. The location affects how the plants grow (DV).

A control group is used as a comparison to the group where things (variables) are changing. The control group serves as a baseline and does not receive any experimental treatment or intervention. It helps researchers determine the effects of the variables being tested by providing a standard for comparison.

The statement is true because in an experiment, the independent variable is the factor that is manipulated or changed by the researcher, while the dependent variable is the factor that is measured or observed and is affected by the independent variable. Therefore, the independent variable has the power to influence or cause a change in the dependent variable.

The dependent variable is the variable that is being measured or observed in an experiment. It is the variable that is expected to change as a result of manipulating the independent variable. Therefore, it is necessary for the dependent variable to be measurable in order to obtain accurate and reliable data from the experiment.

The statement "Sheila has a stain on her shirt" is an example of a qualitative observation because it describes a characteristic or quality of Sheila's shirt, namely the presence of a stain. It does not provide any numerical data or measurements, but rather focuses on the visual aspect of the shirt.

The temperature will affect the amount of sugar that dissolves, therefore the amount of sugar is the DV.

Observation is the correct answer because it refers to the act of using the 5 senses (sight, hearing, taste, touch, and smell) to gather information about the surrounding environment. It involves directly perceiving and gathering data without making any assumptions or interpretations. In contrast, inference involves drawing conclusions or making interpretations based on observed data, prediction involves making educated guesses about future events, and hypothesis involves proposing a tentative explanation for a phenomenon.

The most likely hypothesis being tested in this investigation is that sunlight is necessary for the normal growth of bean plants. This is supported by the observation that the seedlings grown in the dark were white with long, slender stems and soon died, while the seedlings grown in sunlight were green and healthy. This suggests that the absence of sunlight negatively affected the growth and survival of the bean seedlings.

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When communicating experiment results in science, it is important to include tables and graphs if needed to present the data in a clear and organized manner. Additionally, writing a conclusion that states whether the hypothesis was right or wrong helps summarize the findings and their implications. Lastly, ensuring that the lab report is free from bias is crucial to maintain objectivity and credibility. Therefore, including all of the mentioned elements in the lab report is necessary for effective communication of experiment results in science.

Inference is the process of making a conclusion from information provided. It involves using logical reasoning and evidence to reach a logical conclusion or prediction based on the available information. Inference requires analyzing and interpreting the data or observations to draw a plausible conclusion that may not be explicitly stated. It is a fundamental skill in critical thinking and problem-solving.

The statement is true because the independent variable is the factor that is manipulated or changed in an experiment, and it is expected to have an effect on the dependent variable. The dependent variable, on the other hand, is the variable that is measured or observed to determine the outcome of the experiment. Therefore, the independent variable has the ability to cause a change in the dependent variable.

The temperature will affect the amount of sugar that dissolves, therefore the amount of sugar is the DV.

A valid hypothesis must be testable, meaning that it can be empirically investigated and potentially proven or disproven through experimentation or observation. This is because the scientific method relies on the ability to test and gather evidence to support or reject hypotheses. Without testability, a hypothesis cannot be scientifically evaluated and therefore cannot be considered valid.

To test a hypothesis, creating an experiment is essential. This involves designing a controlled procedure to collect data and observe the outcome. By creating an experiment, researchers can manipulate variables and measure their effects, allowing them to gather evidence and draw conclusions about the hypothesis being tested. Guessing alone is not a reliable method for testing hypotheses, and collecting data is a step within the experiment creation process. Publishing results comes after conducting the experiment and analyzing the data.

The analysis of data gathered during a particular experiment is necessary in order to draw a valid conclusion for that experiment. This is because analyzing the data allows researchers to identify patterns, trends, and relationships that may exist within the data. By drawing a valid conclusion based on the analysis of the data, researchers can determine the outcomes and implications of the experiment, as well as make informed decisions or recommendations based on the findings.

To understand scientific investigation, one needs to have basic science skills and knowledge. This includes understanding scientific concepts, being able to collect and analyze data, and having a general understanding of scientific principles. Additionally, the scientific method is crucial in scientific investigation as it provides a systematic approach to conducting experiments, making observations, and drawing conclusions. Science Boot Camp, on the other hand, is not directly related to understanding scientific investigation and therefore is not necessary for this purpose.

A dependent variable is the variable in an experiment that is being measured or observed. It is the variable that is expected to change in response to the independent variable. In order for a variable to be considered a dependent variable, it must be measurable, meaning that it can be quantified or observed in some way. Therefore, the statement "This variable MUST be measurable" aligns with the definition and characteristics of a dependent variable.

Independent variables are the changes that occur in an experiment that are directly caused by the experimenter. These variables are manipulated or controlled by the experimenter to determine their effect on the dependent variable. The independent variable is the factor that is changed or varied in order to observe its impact on the dependent variable. In other words, it is the variable that is being tested or investigated in the experiment.

The changes that occur in an experiment that are directly caused by the experimenter are called independent variables. These variables are deliberately manipulated or changed by the experimenter in order to observe their effect on the dependent variable. The independent variables are under the control of the experimenter and are used to test the hypothesis or research question of the experiment.

Scientific Laws tell us "what" happened. Scientific laws are general statements that describe how the natural world behaves under certain conditions. They are based on repeated observations and experiments and are used to explain and predict phenomena. By studying scientific laws, we can understand and describe the specific events or processes that occur in the natural world.