5th Grade Science STAAR

What is the principle of reflection in relation to light and mirrors?

• The principle of reflection states that light can pass through a mirror without bouncing back.

• The principle of reflection states that when light hits a smooth surface, it bounces back at the same angle at which it hit the surface.

• The principle of reflection states that light is absorbed by a mirror and does not reflect.

• The principle of reflection states that light changes color when it reflects off a surface.

What is the process of evaporation and its importance in the water cycle?

• Evaporation is the process where liquid water turns into vapor, and it helps to distribute moisture in the atmosphere.

• Evaporation is the process of water freezing into ice, which is crucial for maintaining water levels.

• Evaporation is the process of water being absorbed by soil, which is essential for plant growth.

• Evaporation is the process of water being filtered through rocks, which purifies the water.

What factors affect the survival of organisms in a biome?

• Availability of food, water, and shelter

• The color of the organisms

• The size of the organisms

• The age of the organisms

Define 'biome' in the context of ecosystems.

• A biome is a small area with a specific climate and vegetation.

• A biome is a large geographic biotic unit, a major community of plants and animals with similar life forms and environmental conditions, such as a temperate forest or desert.

• A biome is a type of organism that can adapt to various environments.

• A biome is a collection of individual species living in isolation.

Explain the concept of energy transfer in a food chain.

• Energy transfer occurs when one organism eats another, passing on energy from the producer to the consumer.

• Energy transfer is the process of energy being created in the food chain.

• Energy transfer happens only in aquatic ecosystems.

• Energy transfer is the same as energy recycling in nature.

What type of energy powers a solar-powered calculator?

• Chemical energy

• Nuclear energy

• Light energy

• Mechanical energy

What is the role of a consumer in a food chain?

• A consumer is an organism that produces energy through photosynthesis.

• A consumer is an organism that eats other organisms for energy.

• A consumer is an organism that decomposes dead matter.

• A consumer is an organism that absorbs nutrients from the soil.

What happens to water when it absorbs solar energy?

• It freezes into ice.

• It changes state from liquid to gas, a process known as evaporation.

• It remains in liquid form without any change.

• It turns into a solid state immediately.

How does the structure of a mirror affect its ability to reflect light?

• The rough surface of a mirror allows for diffuse reflection, scattering light in many directions.

• The smooth surface of a mirror allows for regular reflection, which means that light rays reflect at equal angles, producing a clear image.

• The color of the mirror determines how much light it reflects, affecting the clarity of the image.

• The thickness of the mirror influences the speed of light reflection, altering the image quality.

What is the significance of light energy in the natural world?

• It is essential for the process of photosynthesis, enabling plants to produce food and oxygen, which forms the base of most food chains.

• It helps in the formation of clouds and precipitation, influencing weather patterns.

• It is primarily responsible for the heating of the Earth's surface, affecting climate change.

• It allows animals to see and navigate their environment, enhancing survival.