QCM : Introduction to Basic Science — 10 questions

Explication

The main purpose of scientific inquiry at this level is to develop curiosity and understanding through asking questions, observing phenomena, and conducting simple experiments. This approach helps young students learn the scientific method and develop critical thinking skills.

Explication

The heart is the organ that pumps blood throughout the body, delivering oxygen and nutrients to tissues. Lungs are involved in respiration, stomach in digestion, and brain in controlling body functions.

Explication

Leaves are the part of a plant where photosynthesis occurs. They capture sunlight and use it to produce food for the plant. Roots, flowers, and stems have other functions but are not the primary sites of photosynthesis.

Explication

The Earth's layers are specifically called the crust (outer shell), mantle (middle layer), and core (central part), which are fundamental in geology. The other options are not scientifically accurate terms for Earth's structure.

Explication

The mantle lies directly beneath the Earth's crust. It is a thick layer of semi-solid rock that surrounds the Earth's core. The core is below the mantle, consisting of the outer and inner core.

Explication

Leaves perform photosynthesis using sunlight, carbon dioxide, and water to produce food for the plant, while roots absorb water, stems support the plant, and flowers aid reproduction.

Explication

After hypothesizing, the next step in the scientific method is to conduct an experiment to test the hypothesis, which provides data to support or refute it.

Explication

Mountains are large natural elevations protruding from the Earth's surface, while valleys are low areas, rivers are flowing water bodies, and plains are flat, expansive land.

Explication

Gravity is the force that pulls objects toward the Earth, which is essential for understanding motion and weight, unlike push, friction, or magnetism, which have different effects.

Explication

Oxygen is a gas present in the air at room temperature, essential for respiration, whereas water is a liquid, ice is solid, and wood is a solid material.