Elementary Science Quiz

You are conducting an experiment in class to determine the acidity of different substances. Your teacher gives you a beaker of red cabbage juice to test the substances. What color will the cabbage juice appear if the substance that you test is a strong acid?

• deep red

• yellow

• yellowish-green

• blue

This scientific measure will vary depending upon where an object is in relation to the Earth. What measure of the gravitational force on an object can be expressed in Newtons?

• weight

• mass

• density

• volume

Tags

NGSS.MS-PS2-4

Physical properties can be observed or measured without changing the identity of the object itself. Which of the following properties is a physical property?

• reactivity

• flammability

• solubility

• none of these

The picture illustrates a cube of ice melting. This melting of ice is an example of a characteristic property of matter. What type of change affects one or more physical properties of a substance?

• chemical change

• physical change

• no change occurs

• both A and B

Tags

NGSS.MS-PS1-4

A seed can be tiny or large, depending upon the plant species. Which seed is recognized as the largest seed in the world and, according to myth, came from a giant tree that grew in the bottom of the ocean?

• orchid

• dandelion

• banana

• double coconut

Use the diagram of an animal cell to answer question 6.

Tags

NGSS.MS-LS1-2

One of this scientist’s laws of motion explains why we need to wear seat belts. Its second part states that 'an object in motion will remain in motion with the same speed and in the same direction unless acted upon by an unbalanced force.' Who wrote this scientific law of motion?

• Einstein

• Galileo

• Curie

• Newton

A boy throws a ball at a target. The ball’s velocity is changing. Which of the following can explain the changing velocity of the ball?

• The ball’s acceleration changes from negative to positive.

• The ball’s acceleration changes from positive to negative.

• The ball’s acceleration is constant.

• The ball’s acceleration is slowly decreasing.

Tags

NGSS.MS-PS2-2

This animal is considered an index fossil of the Cambrian Period. What extinct sea animal’s remains can be found in sedimentary rocks in Kentucky?

• mammoth

• perch

• trilobite

• ray

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

This part of the hydrosphere is a forested region near coastlines where fresh and saltwater mix. It may be located near a river. What wetland usually contains stagnant water and aquatic vegetation?

• mire

• swamp

• sandbar

• floodplain