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Flash Cards: Exploring the Investigative World of Science

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Exploring the Investigative World of Science - Flash Cards

These flash cards cover important concepts from Exploring the Investigative World of Science in Curiosity for Class 8 (Science).

1/19

Define scientific investigation.

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Scientific investigation is the process of asking questions, making observations, conducting experiments, and analyzing results to gain a deeper understanding of natural phenomena.

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2/19

What are independent and dependent variables?

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Independent variables are conditions that are changed in an experiment, while dependent variables are what is measured or observed in response to those changes.

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3/19

What is an ecosystem?

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3/19

An ecosystem is a community of living organisms interacting with each other and with their physical environment.

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4/19

Why are observations important in science?

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Observations are crucial as they provide data that scientists use to form hypotheses and draw conclusions.

5/19

Differentiate between elements, compounds, and mixtures.

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Elements are pure substances that cannot be broken down; compounds are made from two or more elements chemically bonded; mixtures consist of two or more substances combined physically without chemical bonds.

6/19

How does curiosity drive scientific exploration?

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Curiosity prompts questions and investigations that lead to discovering new facts and understanding phenomena.

7/19

What is an example of a simple investigation?

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Investigating why a puri puffs up involves changing variables like thickness or temperature and observing the results to understand the process.

8/19

How do we use electric current in daily life?

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Electric current is used for heating, powering machines, and lighting, enhancing the convenience of modern life.

9/19

What effect do forces have on objects?

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Forces cause objects to speed up, slow down, or change direction, influencing motion and stability.

10/19

What is the difference between reflection and refraction?

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Reflection is when light bounces off a surface; refraction is when light changes direction as it passes through different materials.

11/19

What is pressure?

11/19

Pressure is the force applied per unit area on an object, impacting how fluids behave and how objects interact.

12/19

What is a solution?

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A solution is a homogeneous mixture where one substance (solute) dissolves in another (solvent), like sugar in tea.

13/19

Why should you keep notes during an experiment?

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Keeping notes helps track observations, recognize patterns, and provides data for future reference and comparison.

14/19

What causes light to bend?

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Light bends when it passes through different mediums due to changes in speed, a phenomenon known as refraction.

15/19

How are lunar cycles related to calendars?

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The phases of the Moon, observed over time, helped early humans develop calendars based on natural cycles.

16/19

What is climate change?

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Climate change refers to long-term alterations in temperature and weather patterns, primarily due to human activity.

17/19

What roles do scientists play?

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Scientists are investigators who ask questions, test hypotheses, and work to understand and solve puzzles about the natural world.

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How does observation influence scientific understanding?

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Observations provide critical insights that can lead to new hypotheses, deeper analysis, and broader scientific discoveries.

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Can everyday life be a source of scientific exploration?

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Yes, everyday occurrences, like cooking or weather changes, can inspire scientific questions and simple experiments.