Exploring Science and Nature

What are the names of the eight planets in our solar system?

• Sun, Moon, Earth, Mars

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Pluto

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Pluto, Ceres, Eris, Haumea

What is the purpose of a circuit diagram?

• To serve as a legal document for electrical installations.

• To provide a detailed explanation of electrical theory.

• The purpose of a circuit diagram is to illustrate the arrangement and connections of electrical components in a circuit.

• To display the aesthetic design of electrical components.

How does energy flow in a food chain?

• Energy flows from consumers to producers in a food chain.

• Energy flows from producers to consumers in a food chain.

• Energy flows in a circular pattern among all organisms in a food chain.

• Energy is created by consumers in a food chain.

What is a food web?

• A food web is a single linear food chain.

• A food web is a diagram showing only herbivores in an ecosystem.

• A food web is a type of plant species.

• A food web is a system of interrelated food chains in an ecosystem.

What is reflection in terms of light?

• Reflection is the absorption of light by a surface.

• Reflection in terms of light is the bouncing back of light waves when they hit a surface.

• Reflection is the conversion of light into heat energy.

• Reflection is the scattering of light in different directions.

What is refraction and how does it occur?

• Refraction is the bending of light as it passes from one medium to another due to a change in its speed.

• Refraction is the absorption of light in a medium.

• Refraction occurs only in gases and not in liquids or solids.

• Refraction is the reflection of light when it hits a surface.

What are the main parts of the human reproductive system?

• Heart and lungs

• The main parts of the human reproductive system are the testes and penis in males, and the ovaries, fallopian tubes, uterus, and vagina in females.

• Stomach and intestines

• Brain and spinal cord

What is the function of the circulatory system?

• To digest food and absorb nutrients

• To regulate body temperature and maintain homeostasis

• The function of the circulatory system is to transport blood, nutrients, gases, and waste products throughout the body.

• To provide structural support to the body

How does the respiratory system help us breathe?

• The respiratory system filters toxins from the air we breathe.

• The respiratory system regulates body temperature through breathing.

• The respiratory system helps us digest food efficiently.

• The respiratory system helps us breathe by allowing oxygen intake and carbon dioxide expulsion through lung function.

What are the components of soil?

• The components of soil are mineral particles, organic matter, water, and air.

• Sand and gravel only

• Water and sunlight

• Plastic and metal