S086 Science Exam

Tess wanted to know the average length of a lima bean. She lined up 5 lima beans along a ruler.

What is the average length of these lima beans?

 

Sara noticed that the shadow made by the flagpole on sunny days changed position throughout the day. The diagrams show the flagpole and its shadow at different times during a day.

Which diagram shows the shadow of the flagpole at 2 pm on this day?

This chart indicates the healthy body mass range for adults of different heights.

Allan is 165 cm tall and weight 84 kg. According to chart, Allan is

The ends of a magnet are called poles. One end is the north pole(N) and the opposite end is the south pole(S). Two different poles will move towards each other. Two poles that are the same will push away from each other.

In which diagram will all three magnets move towards each other?

Ms. Julie dropped a large heavy ball from different heights. Using a stopwatch, she timed how long it took for the ball to hit the ground

Ms. Julie repeated the experiment using a smaller, lighter ball. She recorded both sets of results in these tables.

Based on her results, what can she conclude?

Sudden movements of large sections of rock deep within Earth’s crust release energy that sends shock waves in all directions. There are several types of shock waves

• P-waves can travel in all directions through solids and liquids.
• S-waves can only travel only through solids.
• L-waves can only travel along Earth’s surface.

Scientists noticed that if an earthquake occurs in the Northern Hemisphere, some recording stations in the Southern Hemisphere will detect P-waves but not S-waves.

Why were no S-waves detected at station X?

Andy performed a simple experiment to see how far water rises inside different straws.

He placed three straws of different widths into a container of water.

Based on his results, what can Andy conclude?

When a hot object touches a cold object, heat energy flows from the hot object to the cold object. The cold object warms up and the hot object cools down.

Ice cubes can be used to make warm soft drinks colder. When the Ice cubes are in a warm soft drink, the ice eventually melts.

 

 

 

 

How does adding Ice cubes to a soft drink cool the drink?

A car traveling at 60 km per hour leaked oil onto the road. An oil drop fell onto the road every second, making this pattern on the road:

Later, the car traveled at 90 km per hour. What did the oil drop pattern on the road looks like at this speed?

Sally uses this padlock to chain her bicycle to a bike rack.

To unlock the padlock, she has to carry out the following steps

1. 1. 1. 1. Turn the dial to zero using the shortest distance.
         2. Turn the dial anticlockwise and stop at 30.
         3. Turn the dial clockwise and stop at 25.
         4. Turn the dial back to 0 using the shortest distance.

 

1. How many times will the number 20 go past the arrow from its current position?

The following table lists information about some of the planets in our solar system.

Which statement is supported by the information in the table?

The heart has two main functions:

• To pump blood to the lungs to remove carbon dioxide and pick up oxygen
• To pump blood carrying oxygen to all parts of the body.

This process can be summarized by this flowchart.

 

 

 

 

Which statement is supported by the information in the flowchart?

Sharon and Andrew wanted to compare four different brands of paper towel. They had equal-sized paper towel of four different brands: Wet-away, Drya, No Mess, Soaka. They had four measuring cylinders, one for each paper towel. Each measuring cylinder contained 20 mL of water.

Sharon and Andrew slowly poured water onto each paper towel until the paper towel could not soak up any more. The diagrams show the water left in the measuring cylinders after they had stopped pouring water onto the paper towels.

Was this a fair test?

Sharon and Andrew wanted to compare four different brands of paper towel. They had equal-sized paper towel of four different brands: Wet-away, Drya, No Mess, Soaka. They had four measuring cylinders, one for each paper towel. Each measuring cylinder contained 20 mL of water.

Sharon and Andrew slowly poured water onto each paper towel until the paper towel could not soak up any more. The diagrams show the water left in the measuring cylinders after they had stopped pouring water onto the paper towels.

What were Sharon and Andrew trying to find out?

The graph shows the percentage of different minerals in a sample of granite

Percentage of minerals found in a sample of granite

Approximately what fraction of the granite is orthoclase?

Lily has four different liquids that do not mix with each other. She tested three different combinations of these liquids. The diagrams show her results.

Which statement is supported by the diagrams?

Ben and Joe each made a rain gauge to measure how much rain fell during a storm The diagrams show what their rain gauges look like.

The rain gauges were placed near each other in Ben’s backyard during an overnight rainstorm. When Ben and Joe checked the rain gauges the next morning, what should they have seen?

Bacteria can be classified into three categories:

• Predators that kill other microorganisms.
• Mutualists that form a relationship with other organisms in which both organism benefit.
• Pathogens that have a parasitic relationship with other organisms. This means that the bacteria benefit but the organism is harmed.

Lactobacillus is a species of bacteria that is found in the intestines of humans. That bacteria change sugars into lactic acid which stops the growth of some harmful bacteria.

Into which category should Lactobacillus be classified?

Different animals have different hearing ranges. An animal’s lower limit of hearing is the lowest frequency sound it can hear. Its upper limit of hearing is the highest frequency sound it can hear. The hearing range of an animal is made up of all the sound frequencies in between.

The table shows information about some animals

How many of these animals can hear a sound with a frequency of 125 Hz?

Different animals have different hearing ranges. An animal’s lower limit of hearing is the lowest frequency sound it can hear. Its upper limit of hearing is the highest frequency sound it can hear. The hearing range of an animal is made up of all the sound frequencies in between. The table shows information about some animals.

 

 

 

 

A siren makes a noise that both the bat and the crocodile are able to hear.

In what range must the frequency of the siren noise lie?

Andrew wanted to compare the hardness of five minerals. He tried to scratch each mineral using the following objects: a piece of glass, the lead in a pencil, a copper coin, and an iron nail.

The table shows whether each object scratched the minerals or not.

What is the correct order of the minerals from softest to hardest?

Amy carried out an investigation using a spring and some masses

She set up her equipment as shown.

 

 

 

 

 

 

 

 

Amy removed the mass and replaced it with some keys. The keys made the spring stretch by 7.2 cm.

What was the approximate mass of the keys?

Amy carried out an investigation using a spring and some masses

She set up her equipment as shown.

 

 

 

 

 

 

 

 

How much would the spring stretch with a mass of 20 grams attached to it?

Amy carried out an investigation using a spring and some masses

She set up her equipment as shown.

 

 

 

 

 

 

 

 

Which statement is supported by the graph?

Ben has four test tubes containing sugar solutions of different concentrations. The sugar concentrations are 5%, 10%, 15% and 20%

Ben knows the following:

• Test tube 4 contains the highest concentration.
• Test tube 1 does not have the lowest concentration.
• Test tube 2 contains a greater sugar concentration than the test tube 1.

Which test tube contains the 15% sugar solution?

The diagram shows the layers that form Earth’s atmosphere.

•The exosphere is the furthest layer from Earth’s surface and continues to outer space.

•The troposphere is where most of our weather occurs. Living things are found in this layer.

•The stratosphere is where jet aircraft fly.

•The thermosphere is where satellites orbit Earth, above the flight path of jet aircraft.

•The mesosphere is the middle layer and is where many meteors burn up.

Which option matches the letter to the layer of the atmosphere?

The chemical formula for water is H₂O and can be represented by the following diagram:

The chemical formula for carbon dioxide is Co₂ and can be represented by the following diagram:

Methane, the main gas found in natural gas, has the chemical formula CH₄ Which diagram could represent methane?:

The sun rises in the east and sets in the west. Lee took this photograph of a beach umbrella at 9 am

 

 

 

 

 

 

 

Where was Lee standing when he took this photograph?

Tara poured some water into a measuring cylinder and then tilted the measuring cylinder as shown.

 

 

 

 

 

How much water (mL) is in the measuring cylinder?

Objects that have a density greater than that of water sink in the water. Objects that have a density less than that of water float on water. The lower the density of the object, the higher it will float.

Sam had four solid spheres, each one made from a different type of wood. She placed the wooden spheres into a container with water.

The table shows the density of each type of wood. The density of water is 1.0 g/cm^3.

The diagram shows what she observed.

Which sphere is made of maple wood?

Matter can exist as a solid, a liquid or a gas. In a laboratory, substance X melted at 60 °C and boiled at 85 °C.

Which option shows the state of the substance X at the temperatures indicated?

The Law of Superposition states that the layers of rock in an undisturbed sequence of rocks are arranged in a time sequence, with the oldest layer at the bottom and the newest layer on top.

The diagram shows three rock layers 1, 2 and 3.

The diagram also shows a fault line, 4, where earthquake activity caused the rocks to move past each other.

The diagram shows an intrusion, 5, where molten rock from deep inside Earth pushed its way through the layers towards the surface.

 

 

 

 

 

 

 

In which order were the different rock layers, the fault, and intrusion formed, from oldest to youngest?

The diagram shows four rock formations in a particular area. Each rock formation has horizontal rock layers,

Within some of the rock layers, there are fossils. Rock layers of the same age have the same fossils in them.

Within each rock formation, older rock layers are found below younger rock layers.

Which is the youngest fossil?

Andy designed an experiment to determine which of the four objects was the heaviest The diagrams show what Andy did to determine the heaviest object.

 

 

 

 

 

 

 

Which object is the heaviest?

Bananas change color from green to yellow as they ripen. All fruit produces ethylene gas when ripening. This gas speeds up the ripening of the fruit. Tom wanted to see if he could make a banana ripen faster. He took four plastic bags and placed bananas in them as shown in the diagram.

 

 

 

 

Which bags must Tom choose to make his investigation a fair test and for what reason?

Jenny performed an experiment using masses to stretch two different colored lengths of rubber. Each piece of rubber was initially 5 cm long. She hung masses from the end of each piece of rubber. Her teacher told her • Each red length of rubber will stretch 1cm for each 25 g mass hanging from it. • Each blue length of rubber will stretch 2cm for each 25g mass hanging from it

Using four different masses, Jenny performed the experiment as follows.

How heavy is mass 4 in grams?

Jenny performed an experiment using masses to stretch two different colored lengths of rubber. Each piece of rubber was initially 5 cm long. She hung masses from the end of each piece of rubber. Her teacher told her • Each red length of rubber will stretch 1cm for each 25 g mass hanging from it. • Each blue length of rubber will stretch 2cm for each 25g mass hanging from it

Using four different masses, Jenny performed the experiment as follows.

Which option lists the masses from the lightest to heaviest?

The following are some factors that influence whether a driver stops in a short enough distance to avoid an accident

• reaction distance = initial speed of the vehicle x driver’s reaction time
• braking distance = the distance traveled during braking
• stopping distance = reaction distance + braking distance

The graph shows data relating to these factors.

A driver is traveling at 100 km/h. The driver applies the brakes

How far will the car travel after the driver applies the brakes?

The following are some factors that influence whether a driver stops in a short enough distance to avoid an accident

• reaction distance = initial speed of the vehicle x driver’s reaction time
• braking distance = the distance traveled during braking
• stopping distance = reaction distance + braking distance

The graph shows data relating to these factors.

Based on the data, which statement is correct?

The following are some factors that influence whether a driver stops in a short enough distance to avoid an accident

• reaction distance = initial speed of the vehicle x driver’s reaction time
• braking distance = the distance traveled during braking
• stopping distance = reaction distance + braking distance

The graph shows data relating to these factors.

What was the driver’s approximate reaction time when traveling at 60 km/h (1000 meters per minute)?