All questions of Exploring the Investigative World of Science for Class 8 Exam

Which of the following best describes a solution?
a)
A type of element
b)
A mix where one substance dissolves into another
c)
A solid substance
d)
A mixture that cannot be separated
Correct answer is option 'B'. Can you explain this answer?

Coders Trust answered

A solution is defined as a homogeneous mixture in which one substance (the solute) dissolves in another (the solvent). Everyday examples include sugar in tea or salt in water, where the individual components are not visible.

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How do gravitational forces affect everyday activities?
a)
They have no impact on daily life.
b)
They only affect large objects in space.
c)
They are only significant in scientific experiments.
d)
They cause objects to start, stop, or change direction.
Correct answer is option 'D'. Can you explain this answer?

Coders Trust answered

Gravitational forces play a crucial role in everyday activities by influencing how objects move. For example, gravity causes a ball to fall when thrown, and it is essential for activities like walking and cycling, as it affects balance and movement.

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