Exploring Science Concepts

What is the basic unit of life in plants?

• Cell

• Tissue

• Leaf

• Organ

Name the organelle responsible for photosynthesis in plant cells.

• Nucleus

• Ribosomes

• Chloroplasts

• Mitochondria

What structure protects the plant cell and gives it shape?

• Cell wall

• Cell membrane

• Cytoplasm

• Chloroplast

Which system in the human body is responsible for transporting blood?

• Nervous system

• Digestive system

• Respiratory system

• Circulatory system

What are the three main types of blood vessels?

• veins, capillaries, plasma

• arteries, veins, capillaries

• arteries, veins, lymphatics

• arteries, capillaries, platelets

What is the function of the respiratory system?

• To digest food and absorb nutrients.

• To transmit nerve signals and control movement.

• The function of the respiratory system is to facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

• To circulate blood throughout the body.

How does weather differ from climate?

• Weather is determined by human activity; climate is natural and unchanging.

• Weather is short-term and variable; climate is long-term and consistent.

• Weather refers to the average conditions over years; climate refers to daily changes.

• Weather is long-term and consistent; climate is short-term and variable.

What instrument is used to measure temperature?

• Hygrometer

• Thermometer

• Barometer

• Voltmeter

What are the main components of weather?

• Atmospheric pressure and ocean currents

• Temperature, humidity, precipitation, wind, and atmospheric pressure.

• Temperature, humidity, and cloud cover

• Wind speed and solar radiation

What is the term for a long-term average of weather conditions?

• Season

• Climate

• Weather

• Atmosphere