Middle School Science Midterm

How do scientists study atoms despite their tiny size?

• Using X-ray vision

• Through chemical reactions only

• Using specialized microscopes like the Scanning Tunneling Microscope

• By observing their shadows under normal microscopes

What key information does the Periodic Table provide about an element?

• Color and texture

• Number of protons, neutrons, and electrons

• Temperature and weight

• Size and shape

Why are isotopes chemically identical but physically different?

• They have the same number of protons but different neutrons

• They have different electrons

• Their protons are unstable

• They have extra energy shells

What is the primary role of mitochondria?

• Photosynthesis

• Storing waste

• Producing energy

• Protecting the nucleus

Tags

NGSS.MS-LS1-2

How can you identify a plant cell under a microscope?

• By its large vacuole and chloroplasts

• By its flexible cell membrane

• By its circular shape

• By the absence of a nucleus

Tags

NGSS.MS-LS1-2

What happens if a cell membrane stops functioning?

• The cell will stop producing energy
• The cell will begin making its own food

• The cell will begin expanding

• The cell will no longer be able to control what enters or exits

Tags

NGSS.MS-LS1-2

What would happen if a plant cell’s vacuole stopped working?

• The cell would produce more energy

• The cell would lose water balance

• The cell would grow faster

• The cell would produce more chloroplasts

Tags

NGSS.MS-LS1-2

What is the correct order of organization in multicellular organisms?

• Tissue → Cell → Organ → System

• Cell → Tissue → Organ → System

• Organ → Tissue → Cell → System

• System → Organ → Tissue → Cell

What happens if one body system fails?

• Other systems compensate indefinitely

• Other systems remain unaffected

• It can disrupt other systems’ functions

• The body shuts down immediately

Tags

NGSS.MS-LS1-3

How are photosynthesis and respiration linked?

• They occur only in animals

• They are unrelated processes

• The outputs of one are the inputs of the other

• Both rely on nitrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7