OAA Science 5

Question 1

During an experiment, a student measures a liquid's volume in a graduated cylinder and reads the bottom of the curved liquid surface. What is this curved surface called?

Accepted Answer

Meniscus

Answer

The meniscus is the curved surface of a liquid in a container; volume is read from the bottom of this curve for water.

Question 2

Which type of inheritance pattern is shown when a red flower and a white flower cross to produce all pink flowers?

Accepted Answer

Incomplete dominance

Answer

Incomplete dominance produces a blended intermediate phenotype (pink) rather than one dominant trait.

Question 3

What causes the seasons on Earth?

Accepted Answer

The tilt of Earth's axis as it orbits the Sun

Answer

Earth's 23.5° axial tilt means different hemispheres receive more direct sunlight at different times of year.

Question 4

A student mixes two clear liquids and the mixture turns cloudy and produces a gas. This is evidence of a:

Accepted Answer

Chemical change

Answer

The production of a gas and change in appearance indicate new substances formed, which is a chemical change.

Question 5

Which organ system is primarily responsible for transporting oxygen and nutrients throughout the body?

Accepted Answer

Circulatory system

Answer

The circulatory system (heart, blood vessels, blood) transports oxygen and nutrients to cells and removes waste.

(OAA) Ohio Achievement Assessment Practice Test

(OAA) Ohio Achievement Assessment Practice Test

OAA Science 5