I'm Crying Right Now

Mr. Harrelson is bringing graphs into this WAVES thing... We're in SCIENCE, NOT MATH!

I'm about to cry. This is depressing me. Let's not do math.......................... D':

Results?

Well, Friday didn't go as planned. There were tears in the weather balloon, so we just sent it up without the camera/container. "Science and life are full of failures..."

However, we are still going to test things every Friday in March with all of our awesome containers. Some don't even need a parachute (R.I.P. Fergie).

Can't wait to see how that goes!

Balloon Launch

We're launching the balloon today! :DD

Space Cam

So my last post will be completed when I get home and I can actually upload the pictures and video, because the student accounts on school MACs are stupid.

Anyways, I am currently watching Alyssa and Lyndsey tie balloons together into a big balloon of balloons. It's definitely stronger than the last one we made, which we let go (that's in the video). Also, Zelle and Gabby are sewing the parachute. Anders, David, and Collin are working on ..... something.

I am updating and now I'm going to post this and go help. Haha.

Camera in Space

Videos from my iPod:

http://www.facebook.com/video/video.php?v=186230524746968&comments

http://www.facebook.com/video/video.php?v=186218531414834&comments

I made it public, so even if you don't have a facebook, you can watch it. :D

Space Cam

So today, Alyssa and I worked again with our microbeads. We transfered it from the cups to plastic bags. Today, Nora bought polystyrene and that is what we are making the actual container out of. We are using the bags of microbeads as a "cusion" to go inside the container. Alyssa has pictures on her blog ( I honestly cannot find her blog on the list o.o" ). 

Homework 3

1. What are the characteristics of solutions, colloids, and suspensions? Solutions have solutes and solvents. A colloid is a substance that is spread throughout another substance. For example, if you stir squeeze lemon juice into water, it disperses itself throughout the whole pitcher of water. A suspension is similar to a colloid. However, a suspension will settle itself over time. For example, if you drop a handful of sand into water, it will disperse itself, like a colloid, but it will not mix itself throughout the bucket of water and will go down and settle at the bottom.
2. What happens to the particles of a solute when a solution forms? The solute is the substance that is mixed in with the solvent, which dissolves it and forms a solution. So, when the solution forms, the solute is spread throughout the substance.
3. How do solutes affect the freezing point and boiling point of a solvent? Depending on what the solute is, it can affect the solvent when it is mixed together.
4. Suppose you mix food coloring in water to make it blue. Have you made a solution or solution or a suspension? Explain. A solution because the food coloring doesn't settle like a suspension would. It stays spread throughout the water.
5. What effects do solutes have on a solvent’s freezing and boiling points? Isn't this the same as #3?

Objective 2: Concentration and Solubility

1. How is a concentration measured? By how much a substance is mixed in with another substance.
2. Why is solubility useful in identifying substances? Because it is the state of a solid, liquid, or gas-substance.
3. What factors affect the solubility of a substance? It depends on the solute, the temperature, and the pressure.
4. How does temperature affect the solubility of most solids?
5. How can solubility help you identify a substance?

Objective 3: Describing Acids and Bases

1. What are four properties of acids?
2. What are four properties of bases?
3. How can you use litmus paper to distinguish an acid from a base?
4. How might you tell if a food contains an acid as one of its ingredients?
5. Why is it wise to wear gloves when spreading fertilizer in a garden?

Objective 4: Acids and Bases in Solution

1. Which ion is found in acids?
2. Which kinds of ions do acids and bases form in water?
3. What ions will the acid HNO3 form when dissolved in water?
4. What does a substance’s pH tell you?
5. If a solution has a pH of 6, would the solution contain more or fewer hydrogen ons (H+) than an equal volume of solution with a pH of 3?

Objective 5: Digestion and pH

1. What are the two parts of digestion?
2. How do those two parts differ?
3. People who have lost most of their teeth may have trouble chewing their food. How does this affect their digestive process?
4. What is the pH in your mouth? Stomach? Small intestine?
5. Why are pH variations in different parts of the digestive system important to the process of digestion?

Objective 6: Key Terms

Define:

1. Acid
2. Neutralization
3. indicator
4. corrosive
5. hydroxide ion