MS STEM WEEK 2 QUIZ CHALLENGE

What do we call the substances that get the party started in a chemical reaction?

• reactants
• products
• catalyst

According to Newton's first law of motion, what happens to a sleeping sloth if left alone?

• it continues sleeping peacefully
• it wakes up and start dancing

What is the secret value of x in the equation: 2x + 5 = 15?

• 5
• 3
• 4
• 6

Of the following, which is the best example of an environmental variation?

• a suntan
• chin shape
• having ear lobes

Proteins are mainly used in the body for:

• growth and repair
• energy
• digestion

A product of fermentation of milk by bacteria is:

• lactic acid
• ethanol
• glucose
• blood group

Which of the following always happens during a chemical reaction?

• The atoms in the reactants are rearranged to make the products.
• Atoms are broken down into smaller particles
• Elements join together to make new elements
• strong bones

The elements are arranged in the periodic table in order of increasing

• atomic number
• density
• melting point
• oxygen

Find the missing number?

• 18000
• 180
• 1800
• 1.8

What is the name of this shape?

• Trapezium
• Kite
• Parallelogram
• Shape