Grade 8 MT2 assessment 2024-25

The measure of average kinetic energy of all the particles within an object is called ____________.

• temperature

• conduction

• radiation

• heat

Heat transfer always goes from-

• Cold to Hot

• Hot to Cold

• Heat doesn't transfer

• Freezing to Cold

Who proposed the theory of natural selection?

• Isaac Newton

• Albert Einstein

• Charles Darwin

• Galileo Galilei

Which of the following lists three variations among human beings?

• Hair color, eye color, height

• Shoe size, favorite food, pet preference

• Favorite color, favorite sport, favorite movie

• Car preference, music taste, book preference

Look at part of the reactivity series. Which one of the following statements is correct?

• zinc is more reactive than magnesium

• copper is the most reactive

• tin is more reactive than lead

• lead is more reactive than aluminium

Which statement about the reactivity series is correct?

• Metals at the bottom of the reactivity series lose electrons more easily than metals at the top of the series

• Metals at the top of the reactivity series react less vigorously than metals at the bottom of the series

• Metals at the top of the reactivity series lose electrons more easily than metals at the bottom of the series

Which of these metals is less reactive than hydrogen?

• Copper

• Zinc

• Magnesium

• Sodium

What is the correct "inventory" for KClO3?

• a)      K = 1 Cl = 3 O = 3

• a)     K = 3 Cl = 3 O = 3

• a)     K = 1 Cl = 1 O = 3

• a)    K = 1 C = 1 l = 1 O = 3

Why are advantageous traits more likely to be passed onto offspring?

• Because they come from dominant alleles.

• Because they are more likely to survive and reproduce

• Because they come from recessive alleles.

• Because the trait is weak.

What are the ways in which variation is affected?

• Inheritance only

• Environmental factors only

• Inheritance and environmental factors