GW C6 Test

Acids and bases __________________________ each other. Complete each statement.

The basic __________________________ of metals are crystals. Complete each statement.

A material that retains its __________________________ at high temperatures is known as refractory material. Complete each statement.

When __________________________ is harvested, the remaining plant is strengthened and continues to grow. Complete each statement.

Bitter-tasting chemicals that feel slippery or soapy to the touch are called __________________________. Complete each statement.

Identify the choice that best completes the statement or answers the question. Which of the following is the strongest engineered wood?

• Hardboard.

• Plywood.

• Blockboard.

• Particleboard.

Identify the choice that best completes the statement or answers the question. Biobased polymers, or bioplastics, ____.

• damage the environment when recycled

• are made from nonrenewable resources

• are materials made from living organisms

• are very difficult and expensive to recycle

Identify the choice that best completes the statement or answers the question. A smart material can ____.

• only be used to make electrical products

• change its shape in response to its surroundings

• increase the number of atoms in each molecule

• use wood and bamboo to make it lighter

Identify the choice that best completes the statement or answers the question. A ferrous metal or alloy contains ___.

Textiles can be made from ____.

• wool

• cotton

• polyester

• all answers are correct

Answer explanation