Lesson 4: The Ocean Over Time

What are the benefits of marine algae to humans?

They provide food, minerals, vitamins, and ingredients used in many everyday products.

What role do red algae play in food products?

They thicken foods like jellies, yogurt, and ice cream.

What are brown algae used for?

They are used for making tires, paper, and bandages.

What do green algae provide for food products?

They provide pigments used as food coloring.

What is scientific inquiry?

It is the process of investigation that leads to discoveries, answers to questions, and opportunities to ask more questions.

What are observations in scientific inquiry?

They are a collection of information about the natural world using one's senses and tools to enhance human senses.

What is the definition of data in a scientific context?

Data are facts and information based on observations collected and recorded by scientists.

What are the steps of scientific inquiry?

Observation, Questions, Hypothesis, Data, Inferences, and Conclusions.

What does quality data refer to?

Quality data refers to properties such as appearance, taste, smell, and texture.

What does quantity mean in scientific data?

Quantity refers to measurements such as temperature, length, height, cost, and levels.

What is an inference?

An inference is an explanation based on logic, knowledge, and experience.

What is a hypothesis?

A hypothesis is a testable idea about a scientific question.

What is a conclusion in scientific inquiry?

A conclusion is data that supports, fails to support, or contradicts a hypothesis.

What is an experiment?

An experiment is a scientific investigation to test a hypothesis.

What is engineering in the context of science?

Engineering is applying scientific concepts to new problems in order to design solutions and systems.

What are submersibles used for?

They are pressure-controlled chambers used to collect data in deep ocean ecosystems.

How are ROVs connected to ships?

ROVs are connected to ships through a cable.

What is an AUV?

An AUV is a self-guided underwater vehicle that can reach extremely deep water and wider geographic areas.

What data do satellites provide?

Satellites provide remote-sensing data on sea surface temperatures, currents, food availability, pollution, and animal locations.

What are drones used for in scientific research?

Drones are air vehicles that cover large areas quickly.

How have humans historically relied on the ocean?

Humans have relied on the ocean for food, resources, transportation, and recreation.

What is the nature of scientific inquiry?

Scientific inquiry is a cyclical process scientists use to learn about the world.