What Do You Recall About Science Grades 6-8

What does malleable mean?

• can be melted easily
• can be hammered into a shape without shattering
• shatters easily
• hard to melt

What happens when ice melts in your hand?

• Coldness from the ice flows to your hand.
• Heat from your hand flows to the ice.

Which of the following is a HETEROGENEOUS mixture?

• salt water
• mixed nuts
• tea
• milk

A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

• 25%
• 50%
• 75%
• 100%

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

A heterozygous yellow pea plant's GENOTYPE would be:

• YY
• yy
• Yy
• Yellow

What type of cell division is SEXUAL and results in 4 gametes?

• mitosis
• meiosis

What is one advantage of SEXUAL reproduction?

• offspring are identical to parents
• offspring are resistant to viruses
• offspring are born live, rather than from eggs
• offspring inherit a wider variety of genetic information

The sex of an offspring is determined by ______________________.

• the mother
• the father
• the mother and the father
• by the environment

Elements that have properties of both metals and non-metals are called _______.

• halogens
• noble gases
• metalloids
• rare earth metals