From the law of conservation of mass, we know that if a reaction starts with 100g of reactants it should produce how many grams of products at the end of the reaction?

Which graph best represents the relationship between the density of a substance and its state of matter (phase) for most earth materials, excluding water? [Key: S = solid, L = liquid, G = gas]

What is the proper coefficient that goes in front of HCL after the equation is balanced?

____ Zn(s) + ____HCl(aq) ____>H₂(g) + ____ ZnCl₂(aq)

Based on the phase change diagram, what is the melting point of the substance?

Combustion reactions that release fossil fuels are examples of what type of reaction?

What gas is MOST LIKELY represented by the arrow labeled X?

Which organelle is responsible for making food (Glucose) using sunlight?

Which of the following is the correct equation for PHOTOSYNTHESIS?

The purpose of cellular respiration is to

The process of cellular respiration

Which BEST competes the diagram?

Cellular Respiration occurs in what cell organelle?

Choose the correct levels of Organization from lowest to highest...

This is something in an environment like food, water or space that causes a population to decrease.

Which could increase average global temperatures?

The table provided shows the yield of vegetable in a school's garden for 3 years. The yield is the number of pounds of vegetables harvested. What is the most likely reason for the decrease in the vegetables yield in 2006?

Which term best describes the interactions between the physical and living factors shown in the diagram below.

Which type of organism that usually lives in a lake would not be found in level B because of the lack of light?

Which graph shows what most likely would happen to the population of a certain animal if a new predator were introduced at time A?

Which of the following would be the most likely effected, if there were a sudden increase in the cricket population?

Which organisms would most likely have a predator-prey relationship?

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

The mass of a wagon is 40 kg. The wagon accelerates at 8 m/s² . What is the force?

8 N to the left , and 4 N to the right. Find the net force. Is this balanced

What is the net force?

What happens to the balloon if the air is released ?

Which of Newton's Laws is the best to explain the following example: An automobile you are riding in suddenly stops, but you continue to go forward.

Two factors effecting the magnitude of the force of gravity between 2 objects such as moon and earth are...

As the distance between objects decreases, gravity

As temperature increases, air density will

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

Which weather conditions are happening if the barometer is getting higher and increasing in pressure?

The curved paths known as the Coriolis effect is a result of

Which weather conditions are most likely to exist when the height of the mercury in the tube is increasing?

Compared to a continental polar airmass, a maritime tropical airmass is

Which location is most likely experiencing rainy, unstable weather conditions?

Rapidly falling barometric pressure readings (LOW Pressure) most likely indicate

Compared to people living in the Southern hemisphere, people living in the Northern hemisphere are generally experiencing

In New York State there is a greater chance of precipitation falling as snow in January than in March, because in January the Northern Hemisphere is tilted

Which season is taking place in the Northern Hemisphere in Position 1?

Approximately how many weeks pass between the new moon and full moon?

What is the name of the moon phase at #1

At what position would an observer see a Lunar Eclipse?