Nanotechnology focuses on materials measured at the scale of

A gemstone has a mass of 2 carats. What is its equivalent mass in grams?

A learner claims that metal objects feel colder than wooden objects in the same room. Which explanation is scientifically valid?

The Philippines frequently experiences earthquakes because it is located along the

Which classroom strategy most effectively helps students understand heat transfer concepts?

Carbon dioxide is considered a greenhouse gas because it

Which question requires higher-order thinking?

Continuous daylight experienced in polar regions during summer is known as

Viruses differ from living cells primarily because they

Which assessment BEST measures students’ ability to APPLY scientific concepts?

During photosynthesis, plants convert radiant energy primarily into

The role an organism plays in its ecosystem, including resource use and interactions, is called its

Which viral structure protects its genetic material?

Which classroom activity BEST demonstrates conservation of energy?

Teaching plate tectonics in the Philippine context is MOST relevant when discussing

Compared with a food chain, a food web is more useful because it

An ant colony that exhibits division of labor demonstrates

Which statement accurately reflects the Law of Conservation of Energy?

Fungi that obtain nutrients from dead organic matter are best classified as

A competent science teacher is BEST described as one who

Which human activity contributes MOST to acid rain formation?

Which hair-like structure in the human respiratory tract moves mucus and trapped particles outward?

An energy stored in food molecules used during cellular respiration is classified as

Which example BEST shows chemistry applied to environmental protection?

Sunlight is considered Earth’s primary energy source because it

Which environmental effect is MOST directly linked to acid rain?

Energy transfer between trophic levels is inefficient mainly because

Nanotechnology is significant because it

A decline in producers would most directly affect which group FIRST?

Which group of organisms forms the foundation of energy flow in most ecosystems?

Which pair of organisms is MOST likely to belong to the same species?

Which mode of heat transfer occurs most efficiently in solids and requires direct contact between particles?

Esters are commonly used in perfumes because they

Which assessment BEST measures understanding of food web relationships?

Which pigment enables plants to absorb light energy necessary for photosynthesis?

If decomposers suddenly disappeared, which outcome is MOST likely?

The application of nanotechnology in targeted drug delivery belongs to

A metal spoon placed in hot soup becomes warm after a short time. This observation is best explained by

High seismic activity along the Pacific Ring of Fire is mainly due to

Which sequence BEST represents energy flow in a stable ecosystem?

Viruses are not classified as living organisms primarily because they

An international agreement that successfully reduced ozone-depleting substances is

The fruity scent of bananas and pineapples is mainly due to which class of compounds?

How many major taxonomic categories are commonly taught using the Linnaean system?

Which taxonomic level represents the MOST specific classification of organisms?

Inquiry-based learning is BEST supported by

Decomposers are essential to ecosystem stability because they

Why does convection not occur in solids?

If decomposers vanish, we would see

Environmental education in basic science aims to develop

A teacher who contextualizes lessons using local environmental issues demonstrates?

The energy stored in food molecules used during cellular respiration is classified as?

A lesson emphasizing evidence, experimentation, and logical reasoning reflects?

Metalloids such as silicon are useful in electronics because they?

Which human activity contributes MOST to acid rain formation?

The Kyoto Protocol primarily aimed to?

Energy transfer between trophic levels is inefficient mainly because?

Which classroom activity BEST demonstrates conservation of energy?

Environmental issues are integrated across science disciplines mainly to?

Integrating physics, biology, and environmental science promotes?