Q1_REVIEW IN SCIENCE 6

How are the different components distributed in a homogenous mixture?

• Unevenly distributed

• Separated into distinct layers

• Evenly mixed

• Chemically combined

How does the circulatory system ensure that oxygen is delivered to all the body's cells?

• A. The circulatory system transports oxygen only to the brain and heart.

• B. The circulatory system carries oxygen in red blood cells, which are distributed to all body cells through capillaries.

• C. The circulatory system relies on the respiratory system to provide oxygen to the cells.

• D. The circulatory system has no role in delivering oxygen.

What is the process of separating a liquid from a solid mixture by allowing the liquid to pass through a filter?

• Distillation

• Filtration

• Evaporation

• Magnetization

Which organ in the respiratory system is responsible for exchanging gases with the blood and body cells?

• Larynx

• Trachea

• Bronchi

• Alveoli

What is the process of separating a mixture into its components based on differences in boiling points?

• Filtration

• Decantation

• Distillation

• Magnetization

During a hot summer day, you're sweating a lot. What's the primary purpose of the sweat produced by the body?

• Sweating helps keep your body warm.

• Sweating is mainly to lose weight.

• Sweating cools your body down by evaporating and removing excess heat.

• Sweating provides your body with essential nutrients.

How does decantation separating technique works?

• It involves heating a mixture to separate components based on their boiling points.

• It uses a magnet to separate magnetic components from a mixture.

• It allows the settling of heavier particles at the bottom of a container before pouring off the liquid.

• It involves passing a mixture through a filter paper to separate solid particles from a liquid.

What happens to the diaphragm during inhalation and exhalation?

• Diaphragm contracts and moves upward during inhalation, allowing the lungs to expand, and relaxes during exhalation, causing the lungs to contract.

• Diaphragm relaxes and moves downward during inhalation, allowing the lungs to expand, and contract during exhalation, causing the lungs to contract.

• Diaphragm contracts during exhalation to push air out of the lungs, and relaxes to take in air for the lungs.

• Diaphragm contracts during exhalation to push air into the lungs, and relaxes to take out air for the lungs.

What is the difference between a homogeneous mixture from heterogeneous mixture?

• Homogeneous mixtures have a single phase, while heterogeneous mixtures have distinct phases.

• Homogeneous mixtures are always transparent, while heterogeneous mixtures are not.

• Homogeneous mixtures have larger particles, while heterogeneous mixtures have smaller particles.

• Homogeneous mixtures are always chemically combined, while heterogeneous mixtures are not.

What is the difference between voluntary and involuntary muscle movements?

• Voluntary muscles control actions we can consciously decide to perform, while involuntary muscles control actions that happen without our conscious control.

• Voluntary muscles control actions that happen without our conscious control, while involuntary muscles control actions we can consciously decide to perform.

• Both voluntary and involuntary muscles control actions that happen without our conscious control.

• Both voluntary and involuntary muscles control actions we can consciously decide to perform.