6th Science QA # 1 Tutorial

​QA # 1 Prep - 6th Grade

By Mr. Weaver

​Fact # 1: We get the molecules we need from food and air.

Our cells need glucose. We get glucose from the starches in the foods that we eat.

Our cells need oxygen too. We get oxygen from the air that we breathe in.

Multiple Choice

Gabby Thomas is an American sprinter who is training for the 2026 Olympic games which will be hosted in Los Angeles in 2026. One of her best events is the 200 meter dash. How can Gabby Thomas's trainers and doctors make sure that Gabby's body will work well as she trains and competes against the world's best sprinters?

• Her trainers and doctors should make sure that Gabby's body can make enough energy by getting enough sleep.

• Her trainers and doctors should make sure that Gabby's stomach is getting the molecules they need from food and air.

• Her trainers and doctors should make sure that Gabby's cells are getting the molecules they need from food and air.

• Her trainers and doctors should make sure that Gabby's cells are getting different molecules - both starch and protein - from the food she eats.

Multiple Choice

Living on the International Space Station (ISS) in outer space can be very challenging for the human body. NASA's medical team must make sure that astronauts who are living on the ISS stay healthy. NASA closely monitors the diets and exercise of astronauts on board the station - after all, it is very difficult to treat a medical emergency when the patient is in outer space! How can NASA's medical team make sure that their bodies work well during their time in outer space?

• NASA's medical team should make sure that the astronauts' cells get the molecules they need from different types of food.

• NASA's medical team should make sure that the astronauts' stomachs get the molecules they need from food, and that their lungs get the molecules they need from air.

• NASA's medical team should make sure that the astronauts' bodies will have enough energy by getting enough sleep.

• NASA's medical team should make sure that the astronauts' cells get the molecules they need from food and air.

​The cells in your body need glucose and oxygen to release the energy that they need to function.

​As long as your cells get glucose and oxygen, you can exercise, you are healthy, and your body will function properly!

Multiple Choice

Fun Dip is a sugary treat that is mostly made of glucose molecules. If Mr. Weaver rewards a sixth grader with Fun Dip during a raffle at the end of science class, what will happen to the sixth grader's ability to exercise?

• It will be harder for the student to exercise because their digestive system will need to use more enzymes to combine the glucose molecules together.

• It will be easier for the student to exercise because glucose moves through the circulatory system faster than other food molecules do.

• Nothing will happen to the student's ability to exercise, but their respiratory system will not work as hard, since glucose has more energy than oxygen molecules.

• Nothing will happen to the student's ability to exercise, but their digestive system will not work as hard, since glucose is already small enough to get into their cells.

Multiple Choice

Mr. Weaver's stepmom makes waffles for the family on Saturday morning. If everyone in her family pours syrup onto their waffles - which contains lots of glucose - what will happen to the family members ability to exercise?

• Nothing will happen to the family members ability to exercise, but their respiratory system will not work as hard, since glucose has more energy than oxygen molecules.

• It will be easier for the family members to exercise because glucose moves through the circulatory system faster than other food molecules do.

• It will be harder for the family members to exercise because their digestive system will need to use more enzymes to combine the glucose molecules together.

• Nothing will happen to the family members ability to exercise, but their digestive system will not work as hard, since glucose is already small enough to get into their cells.

Multiple Choice

U.S. sprinter and Olympic champion (3 time gold medalist in 2024) Gabby Thomas, like all athletes, must have her blood regulary tested to ensure that athletes are not doping, to ensure an equal competition field. During the blood tests, doctors notice that her cells contain normal levels of oxygen and glucose molecules, but no starch molecules. Will Gabby still be able to train and run normally?

• Yes, as long as her cells have glucose, they don't need anything else to release energy for the body to function.

• Yes, the glucose and oxygen molecules can react together to release energy for the body to function.

• No, her digestive system is not breaking down food molecules; her cells need starch molecules to react with glucose, which releases energy.

• No, her body systems are working, but she needs to eat different foods; in cells, only amino acids can react with oxygen to release energy.

Multiple Choice

Mr. Weaver is going to India in December! In order to make sure that his body is working properly and he has antibodies to shield him from the viruses and illnesses that are there, his doctor orders a metabolic panel (blood testing). The results show that his cells contain normal amounts of oxygen and glucose, and no starch molecules. Is Mr. Weaver healthy and able to exercise normally?

• Yes, the glucose and oxygen molecules can react together for his body to function.

• No, his digestive system is not breaking down food molecules; his cellsl need starch molecules to react with glucose, which releases energy.

• No, his body systems are working, but he needs to eat different food; in cells, only amino acids can react with oxygen to release energy.

• Yes, as long as his cells have glucose, they don't need anything else to release energy for the body to function.

​The digestive, respiratory, and circulatory systems each must work properly for your cells to get the molecules (glucose & oxygen) that they need.

The digestive system breaks down starches into glucose that your cells need.
The respiratory system filters oxygen out of the air we breathe in, which your cells also need.
The circulatory system transports oxygen and glucose molecules to your cells, delivering the oxygen and glucose that all of your cells need!

Multiple Choice

A student is having digestive issues. Why will this make it harder for the student to exercise?

• This will make it difficult to sleep, which will make the student too tired to exercise.

• The students cells will have molecules from air, but not molecules from food.

• The student will need to breathe in more air because their body will have fewer molecules from food.

• The student will not get any of the molecules that their cells need to exercise.

Multiple Choice

Your friend notices that her respiratory system is not working as well as it usually does. She wants your advice on if she will be able to exercise normally. What would you say?

• No, she cannot exercise normally because her cells do not have enough oxygen to react with glucose and release energy.

• No, she cannot exercise normally because her cells do not have enough oxygen to react with proteins to release energy.

• Yes, she can exercise normally because her body can get everything it needs for energy from molecules in food.

• No, she cannot exercise normally because her respiratory system does not have enough oxygen to combine together to release energy.

​When you are given a test report for a patient, focus on the small intestines (check the glucose levels) and lungs (check the oxygen levels).

Since this patient has high glucose levels in the small intestines (good!) but low oxygen levels in the lungs (bad!), this patient has a respiratory problem.

Multiple Choice

Analyze D. Kong's test report. The test report shows the level of molecules in different parts of D. Kong's body. How would you expect D. Kong to do on an exercise test?

• Well; his body is working properly.

• Poorly; his digestive system is not combining glucose molecules together for the cells to use.

• Poorly; his digestive system is not breaking down molecules from food into glucose.

• Poorly; his respiratory system is not taking in enough oxygen for the body.

Multiple Choice

Analyze Yoshi's test report. The test report shows the level of molecules in different parts of D. Kong's body. How would you expect D. Kong to do on an exercise test?

• Well; his body is working properly.

• Poorly; his digestive system is not combining glucose molecules together for the cells to use.

• Poorly; his digestive system is not breaking down molecules from food into glucose.

• Poorly; his respiratory system is not taking in enough oxygen for the body.

​In order to exercise and play sports well, the body needs normal amounts of both glucose and oxygen. As elevation increases, oxygen levels become lower and lower - which makes it harder for cells to release energy (and for athletes to perform well).

Multiple Choice

Two soccer teams are traveling away for their games, at two different locations. Canada's national team is playing at New Zealand, at sea level, where there is normal amount of oxygen. Before the game, the Canada players ate a lunch of mostly starch. Jordan's national team is playing their game at a very high altitude in Bolivia, where there is less oxygen. The players on Jordan's national team ate a lunch of starch and protein. Which team probably does better in their game - Canada or Jordan, based on what their bodies need?

• The Canada players probably did better because their cells release energy from oxygen reacting with glucose, which was broken down from starch in the digestive system.

• The Jordan players probably did better because their cells released energy from breaking down protein in the digestive system, which then combined with oxygen in cells.

• The teams did equally well because their digestive systems just need to break down starch into glucose for cells to release energy.

• The teams did equally well because glucose from starch can react with oxygen or proteins to release energy.

Multiple Choice

Two lacrosse teams - the Perfect Penguins and the Amazing Aardvarks - are playing games at two different locations. The Perfect Penguins play their game at sea level, where there is lots of oxygen and they eat a breakfast of starches. The Amazing Aardvarks are playing their game at a very high elevation, where there are low levels of oxygen and they eat a breakfast of starches and proteins. Which team's bodies will function better during their games?

• The Perfect Penguins players probably did better because their cells release energy from oxygen reacting with glucose, which was broken down from starch in the digestive system.

• The Amazing Aardvark players probably did better because their cells released energy from breaking down protein in the digestive system, which then combined with oxygen in cells.

• Both teams did equally well because their digestive systems just need to break down starch into glucose for cells to release energy.

• Both teams did equally well because glucose from starch can react with oxygen or proteins to release energy.

​Cells need glucose + oxygen to release energy - cellular respiration.

Multiple Choice

What do cells need for cellular respiration?

• sunlight + water + carbon dioxide

• glucose + oxygen

• proteins + starches

• sunlight + water + carbon dioxide

Multiple Choice

What do cells need for cellular respiration?

• sunlight + water + carbon dioxide

• proteins + starches

• water + carbon dioxide

• glucose + oxygen

See how Z shows molecules like proteins? These are large molecules called macromolecules!

See how Y is glowing? This shows energy that is being released!

See how X shows molecules changing? This shows chemical reactions!

Dropdown

Y shows​

Select answer

Dropdown

Z shows​

Select answer

Dropdown

X shows​

Select answer

Temperature is a measure of an object's avearge kinetic energy.

When the temperature increases, the energy increases!

When the temperature decreases, the energy decreases!

Multiple Choice

Kynisha is ironing her clothes. As the hot iron travels over the shirt, the shirt increases in temperature. What happens to the molecules in the shirt when the temperature of the shirt increases?

• The cold energy of the molecules in the shirt decreases.

• More heat molecules combine with the molecules in the shirt.

• The energy of the molecules in the shirt increases.

• The energy of the molecules in the shirt decreases.

Multiple Choice

The picture shows volcanic lava flowing over a road in Hawaii. As the lava travels over the road, the road increases in temperature. What happens to the molecules in the road when the temperature of the road increases?

• More heat molecules combine with the molecules in the road.

• The energy of the molecules in the road decreases.

• The energy of the molecules in the road increases.

• The cold energy of the molecules in the road decreases.

Multiple Choice

During a hot summer day, the air conditioner in a car is running to cool the car. What happens to the molecules in the air inside the car when the temperature of the air decreases?

• The energy of the molecules in the air decreases.

• The energy of the molecules in the air increases.

• The cold energy of the molecules in the air increases.

• The air loses heat molecules.

​Energy always transfers from hot objects to cold objects.

• ​First look to see which object is hotter.

• The hotter object will transfer kinetic energy to the colder object until both objects reach the same temperature, which will be between their starting temperatures.

  In this case, energy will transfer from Pancake A to Pancake B until they reach the same temp - 90.

Multiple Choice

A chocolate maker is going to stack two bars of chocolate. The bars of chocolate are the same size and have the same number of molecules. The diagram above shows the chocolate bars now, before they touch each other. Use the information in the diagram to answer the question.

How does the temperature of the top chocolate bar compare with the temperature of the bottom chocolate bar now, and what will happen after the bars have been touching for a while?

• Before the bars touch, the two bars are different temperatures. Once the bars are touching, both kinetic energy and cold energy will transfer between the molecules in the two bars until both bars reach the same temperature, which will be in between their starting temperatures.

• Before the bars touch, the top bar is cooler than the bottom bar. Once the bars are touching, the bottom bar will transfer kinetic energy to the molecules in the cooler top bar until both bars reach the same temperature, which will be in between their starting temperatures.

• Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the top bar will transfer kinetic energy to the molecules in the cooler bottom bar until both bars reach the same temperature, which will be in between their starting temperatures.

• Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the cooler bottom bar will gain kinetic energy until the molecules of both bars have an energy of 25, because hotter things increase the temperature of cooler things.

Multiple Choice

How does the temperature of Pancake A compare with the temperature of Pancake B before they touch? What will happen after the pancakes have been touching for a while?

• Before the pancakes touch, Pancake A is hotter than Panckake B. Once the pancakes are touching, the top pancake will transfer kinetic energy to the molecules in the bottom pancake until both pancakes reach the same temperature, which will be in between their starting temperatures.

• Before the pancakes touch, the top pancake is hotter than the bottom pancake. Once the pancakes are touching, the bottom pancake will gain kinetic energy until the molecules of both sheets have an energy of 100.

• Before the pancakes touch, the top pancake is cooler than the bottom pancake. Once the pancakes are touching, the bottom pancake will transfer kinetic energy to the molecules in the top pancake until both pancakes reach the same temperature, which will be in between their starting temperatures.

• Before the pancakes touch, the pancakes are different temperatures. Once the pancakes are touching, kinetic energy and cold energy will transfer between the molecules in the two pancakes until both pancakes reach the same temperature, which will be in between their starting temperatures.

​Molecules in warmer objects move faster than objects in colder objects.


Molecules in colder objects move slower than objects in warmer objects.

Multiple Choice

Mr. Weaver made some tea, but he forgot about it and took Toby on a long walk. When he returns to his kitchen, the tea is too cold. So Mr. Weaver puts the tea into the microwave on high for a minute. What is the difference between the molecules of the tea before and after he reheats it in the microwave?

• The molecules in the cool tea move faster than the molecules in the hot reheated tea.

• The molecules in the cool tea move slower than the molecules in the hot reheated tea.

• There is no difference because all of the tea is made up of the same type of molecules - water molecules.

• The molecules of cool tea are smaller than the molecules of the hot reheated tea.

Multiple Choice

Mrs. Tillery makes chili in the slow cooker for her family to enjoy on a Sunday afternoon. The slow cooker keeps the chili hot throughout the afternoon. At 6pm Mrs. Tillery takes the leftover chili and transfers it into a plastic container, and puts it in the freezer so it can be enjoyed later in the month. What is the difference between the molecules of the chili in the slow cooker, and the molecules of the chili in the freezer?

• The molecules in the chili in the slow cooker are moving and the molecules in the chili in the freezer are not moving.

• The molecules in the chili in the slow cooker are moving faster than the molecules in the chili in the freezer.

• There is no difference because all of the chili is made up of the same type of molecules.

• The molecules of chili in the freezer are smaller than the molecules of the chili in the slow cooker.

​A metal rod is heated until it is so hot, it is glowing red.

When the rod is placed into a glass of cold water, it wil transfer kinetic energy to the cold water.

The water will become warmer as the rod cools down, until they reach the same temperature (equilibrium).

Multiple Choice

After enough time, what will happen to this experiment?

• The temperature of the water will increase and the temperature of the rod will increase, but the temperatures will never become equal.

• The temperature of the water will decrease and the temperature of the rod will decrease, and eventually the temperatures will become equal.

• The temperature of the water will increase and the temperature of the rod will decrease, and eventually the temperatures will become the same.

• The temperature of the water will increase and the temperature of the rod will increase, and eventually the temperatures will become the same.