Year 8/7th Grade Exam Quiz :) Science

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| By Libertymae

Libertymae

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1/5 Questions

What is the word equation for respiration?
- Water+Carbon Dioxide= Nitrogen+Oxygen
- Glucose+Oxygen=Carbon Dioxide+Water
- Glucose+Oxygen=Carbon Dioxide+Nitrogen

About This Quiz

This Year 8\/7th Grade Science quiz assesses knowledge on fundamental scientific concepts including respiration, properties of light, and basic elements. It tests understanding through true\/false and matching questions, enhancing students' comprehension of key science topics.

Year 8/7th Grade Exam Quiz :) Science - Quiz

2.

Heart Disease is caused by lack of Vitamin C?
- True
- False
Correct Answer

A. False

Explanation

Heart disease is not caused by lack of Vitamin C. Heart disease is a complex condition that can have multiple causes, including high blood pressure, high cholesterol, smoking, obesity, and a sedentary lifestyle. While Vitamin C is important for overall health and can help support a healthy cardiovascular system, it is not the sole cause of heart disease. Other factors such as genetics, age, and underlying medical conditions also play a significant role in the development of heart disease.

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4
3.

What is the effect called when light hits a window and changes direction?
- Reflection
- Spectrum
- Refraction
- Mirror Line
Correct Answer

A. Refraction

Explanation

Refraction is the correct answer because when light passes through a window, it changes direction due to the change in speed caused by the change in medium. This phenomenon is known as refraction.

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2
4.

True or False? Light travels in straight lines??
- True
- False
Correct Answer

A. True

Explanation

Light travels in straight lines because it is a form of electromagnetic radiation that propagates through space as waves. These waves move in a straight line until they encounter an obstacle or are refracted or reflected by a medium. This behavior is explained by the principle of rectilinear propagation of light, which states that light travels in straight lines unless it interacts with another object or medium.

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Year 8/7th Grade Exam Quiz :) Science

What is the word equation for respiration?

Quiz Preview

Heart Disease is caused by lack of Vitamin C?

What is the effect called when light hits a window and changes direction?

True or False? Light travels in straight lines??