DAILY SCIENCE REVIEW

Use the diagram to help answer the question.

Select all the correct statements about photosynthesis.

• Plants take in carbon dioxide.

• Plants release carbon dioxide.

• Plants take in oxygen.

• Plants release oxygen.

• Plants make sugar.

Answer explanation

During photosynthesis, plants take in carbon dioxide and release oxygen as a byproduct. They also convert carbon dioxide and water into sugar using sunlight, making the statements about taking in CO2, releasing O2, and making sugar correct.

Tags

4.2

plants

photosynthesis

multiple correct

Which plant has entered dormancy?

• 
• 
• 
• 

Answer explanation

Dormancy is a period of inactivity in plants. It is similar to hibernation in animals.

Tags

4.2

plants

Which picture does not show a population?

• 
• 
• 
• 

Answer explanation

All the organisms of the same species that live in the same place at the same time are a population

Tags

4.3

eosystems

All of the living and nonliving things in an area are a(n):

• ecosystem

• population

• community

Answer explanation

An ecosystem includes all living (plants, animals) and nonliving (water, soil) components in a specific area, making it the correct choice. A population refers to one species, while a community consists of multiple species.

Tags

4.3

ecosystems

A food chain always starts with a plant, which is a:

• consumer

• producer

• decomposer

• predator

Answer explanation

A food chain starts with plants, which are known as producers. They create energy through photosynthesis, forming the base of the food chain, unlike consumers, decomposers, or predators.

Tags

4.3

food chains

Match the following:

• producer

• beginning of food chain

• predator

• end of food chain

• sun

• top of food chain

• decomposer

• supplies energy to food chain

Tags

4.3

food chains

matching

Which animal does not match its habitat?

• deer / forest

• beaver / swamp

• squirrel / desert

• frog / pond

Answer explanation

The squirrel is not suited for a desert habitat, as it typically thrives in forests or wooded areas. In contrast, deer, beavers, and frogs are well-adapted to their respective habitats of forest, swamp, and pond.

Tags

4.3

habitats

matching

A _________ is a weather instrument that measures air pressure.

• barometer

• anemometer

• thermometer

• rain gauge

Answer explanation

A barometer is specifically designed to measure air pressure, making it the correct choice. An anemometer measures wind speed, a thermometer measures temperature, and a rain gauge measures precipitation.

Tags

4.4

weather instruments

An anemometer is a weather instrument that measures:

• wind speed

• air pressure

• temperature

• humidity

Answer explanation

An anemometer is specifically designed to measure wind speed, making it essential for weather forecasting and studies. The other options, such as air pressure, temperature, and humidity, are measured by different instruments.

Tags

4.4

weather instruments

What is this?

• Thermometer

• Rain gauge

• Anemometer

• Barometer

Answer explanation

A rain gauge is an instrument used to measure the amount of rainfall. It collects rainwater and provides a measurement, distinguishing it from other instruments like thermometers or anemometers, which measure temperature and wind speed, respectively.

Tags

4.4

weather instruments