Untitled Quiz

Weathering and the Moon

• Weathering is the process that breaks down solid rock into sediments.
• Rocks on the moon are not weathered because there is no atmosphere.

Earth's Formation

• Earth is estimated to be 4.54 billion years old.
• Scientists have dated the oldest rocks to approximately 4.03 billion years old in Northwestern Canada.
• Other rock and mineral samples confirm the age estimate.

Types of Rocks

• Igneous rocks form from the hardening and crystallization of magma or molten material.
• Sedimentary rocks form from bits of sand and gravel that form layers then harden into rock from pressure.
• Metamorphic rocks form when rocks are subjected to high heat and pressure, hot mineral-rich fluids.

Types of Igneous Rocks

• Extrusive/volcanic rocks form when magma cools quickly at the Earth's surface. They have small, fine-grained crystals.
• Intrusive/plutonic rocks form when magma cools slowly beneath the Earth's surface. They have large, coarse-grained crystals.

Branches of Science Studying the Universe

• Cosmology is the study of the universe as a unified whole.
• Astronomy is the scientific study of stars, planets, and other natural objects in space.
• Astrology is the study of celestial bodies influence on human affairs and the natural world. Cosmetology is the practice of beautifying the face, hair, and skin.

Leading Explanation of the Universe's Beginning

• The Big Bang theory is the leading explanation for the universe's beginning.

What is a Tsunami

• Tsunamis are created when a body of water is displaced, usually by an earthquake.

Theories of the Universe's Development

• Steady state theory: The universe is constantly expanding, and the density remains relatively constant. It has no beginning or end.
• Pulsating universe theory: The universe goes through cycles of expansion and contraction.
• Big crunch theory: The universe will eventually stop growing, shrink, and get hotter.

Measuring Earthquake Destruction

• The modified Mercalli scale measures the intensity of an earthquake based on its effects.
• The moment magnitude scale measures the magnitude of an earthquake by measuring the seismic waves that cause the earthquake.

Earth's Spheres

• The geosphere includes Earth's interior, rocks, and minerals.

Geothermal Systems

• Geothermal systems utilize heat from Earth's interior to generate electricity.

Biological Classification Order

• The correct hierarchical order of biological classification from broadest to most specific is: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

Cell Structure and Function

• Cells are the basic units of life.
• Tissues are groups of similar cells working together to perform a specific function.
• Organs are structures made up of different tissues that work together to perform a more complex function.
• Organ systems are groups of organs that work together to perform a major body function.

First Scientist to Observe Cells

• Robert Hooke first observed cells in cork in 1665.

Majority Stage of the Cell Cycle

• A cell spends the majority of its life cycle in the Interphase stage.

DNA Condensation

• When a cell is ready to divide, DNA condenses into structures called chromosomes.

Purpose of Meiosis

• Meiosis produces haploid gametes.

Bacterial Shapes

• The bacteria that causes syphilis is a spirochete.

Eukaryotic vs. Prokaryotic Cells

• Eukaryotic cells have mitochondria and complex structures like cilia and flagella.
• Prokaryotic cells have simpler structures and no nucleus.

Analogous Structures

• Analogous structures share a similar function but have a different evolutionary origin.
• Example: the wing of a bird and a bat wing.

Enzymes in Saliva

• Amylase is an enzyme in saliva that breaks down sugars.

Skeletal System Structure

• Ligaments connect bones to other bones
• Joints bind the skeleton together
• Tendons connect muscles to bones
• Cartilage is a flexible connective tissue that is found in many parts of the body, including some joints.

Blood Cells

• Erythrocytes are red blood cells.

Flower Structure

• A complete flower has all its parts, including sepals, petals, pistil, and stamens.
• A perfect flower has both male and female reproductive parts (stamen/pistil).

Probabilities of Recessive Traits in Plants

• If both parents have a homozygous dominant trait, there is a 0% chance of their offspring having a recessive trait.