TUG O WITS CHALLENGE Grade 11

Show the Lewis Structure of your chosen (1) compound:

Ammonium Ion [NH ₄] ⁺

Carbonate Ion [CO₃]²⁻

Nitrate Ion [NO₃] ^-

Sulfate Ion [SO₄]^2-

A. 4 pounds chicken=___casserole Chicken Adobo

B. 15 tbsp vinegar=___pcs onion

C. 4 cups of water=___cloves garlic

D. 10 packs pepper corn= ___ casserole Chicken Adobo

E. 3 pounds chicken=___tbsp soy sauce

F. 4 pcs onion=___cloves garlic

G. 12 cups water=___tbsp vinegar

H. 10 tbsp soy sauce=___ pounds chicken

What is the correct procedure for adjusting the focus on a microscope to achieve clear visualization of the specimen? Also, identify what specific stage of mitotic cell division does the picture represents.

What is the mass of the rock? Explain also how to use a triple beam balance to measure the mass.

Guess the code seen on the picture.

Instructions:

1. Use at least FOUR of these {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

digits to create a mathematical expression that results in 849.

2. Be Creative. There are numerous ways to reach the same number using

different operations. Explore different combinations and operations to find your

expression.

NO CALCULATORS ARE ALLOWED.

Show your created expression on the space provided.

In realms unseen by mortal eyes, Where molecules dance 'neath starlit skies, A force of nature, both small and grand, Shapes the world with its invisible hand.

It binds the stars in cosmic flight, And guides the tides with gentle might. Yet in the lab, its secrets unfold, Revealing wonders, both new and old.

What am I, that mystifies the wise, With powers vast and hidden ties? In atoms' dance, I make my stand, As the cornerstone of creation's hand.

Two answers hold the key to this rhyme, For I am both elusive and sublime. In the vast expanse or in a beaker's grasp, I'm the force that shapes the present and past.

What am I?