Light: my water bottle

My Reaction

The backpack felt way heavier than I thought. The bottle looked big but felt really light.

Connect to Density

My backpack had books so it was full and dense. The bottle was empty so it was light.

Big Idea

Big stuff is not always heavy. Small stuff can be heavy if it has more inside.

Object that felt lighter than expected: A large box of Knott's cookies

My reaction:

The weight of the bottle of Suero surprised me because it's just a drink. I was expecting it to be light but it was kind of heavy.

The weight of the box of cookies surprised me because it's a big box. I was expecting it to be heavy but it was kind of light.

Connect to density:

I think that density played a role in the surprise of the drink because a bottle of Suero has dissolved solids and more mass which makes it heavier than something like a plain bottle of water of that size.

I think that density played a role in the surprise of the cookies because the big box makes you believe that it has a higher amount of mass but they are low in density because of what the cookies are made of which makes the box not so heavy.

Big idea:

Understanding density helps explain everyday surprises like this by letting us know why objects sometimes feel or are a different way than how they look.

My reaction When I lifted the microwave to put it somewhere else was that it was a lot more heavy than I expected it to be. My reaction to when I lifted the 12 pack of soda was that it was lighter than I expected it to be.

What I was expecting was for the microwave to be heavy, but what happened was that it was more heavy than I thought. What I was expecting was that the 12 pack of soda would have been heavier.

Density:

The way that I think density played a role in this surprise was by the material of the mircrowave being heavier by the mass it has and the 12 pack of soda not being as heavy because the cans of soda as just mostly liquid.

Big idea:

The way that understanding density can help with everyday surprises like this is by not assuming how much an object can weigh due to the size, it all depends on the mass that an object has.

Light but heavy: Thick chapter books

My reaction:

The Chapter book felt way heavier than I thought. The Chromebook looked heavy, but its light

Density shows that weight alone dosent determine how things behave.

The binoculars felt way heavier than I thought they would. They didn’t look that big, so I figured they’d be easy to hold for a while, but after just a bit, my arms started to feel tired. On the other hand, the toy car felt super light. It looked solid, but when I picked it up, it felt like it weighed nothing at all.

Connection to Density;

Density plays a significant role in the surprising weight differences between binoculars and a toy car. The binoculars are constructed from dense materials such as glass and metal. In contrast, the toy car is primarily made of plastic with hollow spaces, has a low density, making it light even though it appears solid.

Big Idea;
Understanding density helps explain why objects don’t always weigh what we expect. It shows that weight depends not just on size, but on how much mass is packed into an object. This helps explain everyday surprises when we pick things up.

The object that felt lighter than expected: A slightly larger tissue box.

My reaction:

The weight of the tape dispenser surprised me because of how small it was and plus it's a tape dispenser so I wouldn't expect it to have that much weight to it.

The weight of the tissue box surprised me because it's a big box, bigger than the tape dispenser so I assumed it to weigh more.

Connect to density:

The reason I think that density played a role in this surprising me was because the material of the tape dispenser was a lot heavier then the tissues, even though the tape dispenser has a smaller mass then the tissues.

Big idea:

Understanding density helps explain everyday surprises like this by letting you understand that an object's weight also depends on how big the mass is of the object and the material of it.

the water bottle felt way heavier than I thought. The pencil was lighter than I thought.

my reaction was that the water bottle was very heavy without the water being in it. the pencil was like it was lighter I thought it was going to have a little weight to it.

connect to Destiny :

My water bottle was made out of metal so that made it dense. The pencil was made out of a little wood so it made it light.

big idea:

Understanding destiny helps explain how our everyday things don't always weight or look how we expect them to.

Light:plastic laundry basket

My reaction:

I expected the rock to be light because it wasn't very big but instead it felt surprisingly heavy. As for the laundry basket, it was wide and bulky so I expected it to be a little heavier. When I lifted it, it felt very light.

Density:

Density explains both surprises because it compares mass to volume. The rock had a high density, so even though it's so small it has a lot of mass. The laundry basket had a low density because even if the laundry basket takes up a lot of space, it doesn't weigh much.

Big idea:

Understanding density helps explain everyday surprises by showing that an object's weight depends more on the material rather than its size alone.

Lighter than expected: An empty cardboard box

The small dumbbell surprised me because it looked tiny, so I expected it to be easy to lift. When I picked it up, it felt much heavier than I thought.

The cardboard box surprised me in the opposite way. It was pretty big, so I thought it would weigh more, but when I lifted it, it felt very light.

Density explains this surprise because it depends on the material and how tightly packed it is, not just the size. The dumbbell is made of solid metal, which has a high density, so even a small object weighs a lot. The cardboard box has a lot of empty space and is made of light material, so it has a low density.

The MacBook surprised me because it's made of metal, so I thought it would be heavier. It was actually very light and easy to pick up. The watermelon surprised me because it's fruit, so I thought it wouldn't really be heavy. It actually ended up being heavier than I expected. Especially the watermelons at Costco.

I think the MacBook was lighter than expected because although it is made of metal, it's thin and not very big. I think the watermelon was heavier because it's mostly all water making it dense. Some watermelons are also large in size increasing the weight.

Understanding density helps explain everyday surprises like this because if we understand the ratio of material to mass/volume, we will know what to expect from certain objects.

Lighter: Shoe/slide

My reaction: I honestly didn't think that my iPhone was heavy for how small it is even though I pick it up and use it everyday but like I said it's heavier than I expected and maybe others as well.

My slides surprised me because I wear them everyday and I felt like they were heavy but once I picked them up I was surprised to feel how light they actually were.

Connect to Density: I think it played a role in this object because the battery for the phone weighs a lot more than you would think and myself and maybe others wouldn't expect it to honestly have some weight to it.

I think it played a role in this object because some shoes/slides are made heavier than you would think and they weren't and they were light and mine were and surprised me.

Big Idea: Help understand density explains everyday surprises because some objects are different than we would expect or look.

Lighter than expected: A chair

My reaction:

I thought the pot would be light because it's small, but when it was heavy when I lifted it.

I thought the chair would be heavy because it's big, but it was easier to lift than I expected.

Connect to density:

The pot is made of metal, which is very dense, but even a small pot can feel heavy. The chair is mostly made of wood or hollow plastic, which is less dense, so it can feel lighter even though it's big.

Big idea:

Density helps explain why some things surprise us when we lift them. Just looking at how big or small something is doesn't always tell you how heavy it is. Big things can be light if they're made of light materials, and small things can be heavy if they're made of dense materials. Knowing this actually helps in real life, like when you're moving stuff around the house or picking up kitchen items, you won't get shocked by how heavy or light something is.

Lighter than expected: Large cardboard box

My reaction:

When I picked up the textbook, I expected it to feel manageable because it wasn't very thick. Instead, it felt surprisingly heavy. The cardboard box was pretty big, so I assumed it would take some effort to lift. But when I picked it up, it was almost weightless. My arms lifted easily, and I was surprised by how little it actually weighted.

Connect to density:

Density helps explains both situations. The textbook is made of tightly packed paper, so even though it doesn't take up a lot of space, it has a lot of mass in a small volume, making it dense and heavy. The cardboard box, even thought it's large, is mostly air with thin layers of cardboard, giving it a much lower density.

Big Idea:

Understanding density helps explain why size can be misleading. Objects that are small but made of dense materials can be heavy, while large objects made of lighter materials can feel surprisingly light. Knowing this helps make sense of everyday surprises and shows how physics shows up in normal daily life.

Lighter than expected: A big metal baking tray

My reaction...

Hardcover book: I expected it to be light since it wasn't a big object, but when I picked it up it was surprisingly heavy.

Big Metal Baking Tray: The tray looked large so I thought it would weigh more. When I lifted it, it felt really light.

Connection to Density

The hardcover book has a lot of mass packed into a small space, which means it has high density. The baking tray is made of metal, a material that is relatively light, and it's very thin, so even though it has a large surface area, it has a low density.

Big Idea

Understanding density helps explain why size can be misleading. Objects made from dense materials can feel heavy even when small, while objects made from less dense materials can feel light even when they take up a lot of space.

PS5

Lighter than expected:

PS5 controller

My reaction:

When I picked up the PS5, it felt much heavier than I thought it would be. The controller looked like it would be heavy, but it was actually light.

Connect to density:

The PS5 is heavy because it has many parts inside it. The controller has fewer parts and is mostly plastic, so it is lighter. This shows that big things are not always heavy and small things are not always light.

Lighter than expected: an air fryer

My reaction: I expected the air fryer to be heavy since it looked bulky and looked like it was made out of metal. I thought the notebook wouldve been light since it's just paper.

Connection to Density: Air fryers have a lot of empty space inside, which makes it dense. Notebooks have hundreds of paper stacked together and it makes it dense.

Big idea: Understanding density helps explain why things that look big might be light and why things that look light might be heavy.

A small hardcover book

Lighter than expected:

An empty cardboard box

I thought the book would be light since it was small, but when I picked it up, it felt heavier than I expected. The cardboard box looked big, so I thought it would weigh more, but when I lifted it, it felt really light.

This surprised me because the book has a lot of mass packed into a small space, while the box is made of thin material and has a lot of empty space inside. That means the book has higher density and the box has lower density.

Understanding density helps explain why some small objects feel heavy and some large objects feel light, even when they don’t look like they should.

I thought the water bottle would feel light because it wasn't very big, but when I picked it up it felt heavier than expected.

Connection to density:

The metal has a high density, meaning a lot of mass is packed into a small space. This is why the bottle felt heavy.

Understanding density helps explain why objects that look big can feel light and object that look small can feel heavy

My reaction was that the bottle surprised me because I didn’t expect it to feel so heavy, and the box surprised me because it felt almost empty. Density explains this because the metal bottle is made of a denser material, while the box has a lot of volume but very little mass.

lighter than expected: empty big cardboard box

reaction: The light bulb surprised me because even though it was very small, it felt like it had some weight on it, I did expect it to be lighter because of its size. The cardboard box looked huge, so it looks like it would weigh a lot, but when I lift it , it feels like a cloud.

connection to density: This happened because of density. the light bulb is made of glass or plastic, which has a lot of mass packed into it and makes it very dense. The cardboard box has a large volume but very little mass, so it has low density.

big idea: Understanding the density helped explain why the size of an item dosen't always match how heavy it feels. Objects made of density materials have more weight more than objects made of less dense materials, even if they are smaller in size.

Lighter than expected: A box full of soundproof panels

The gallon of milk is just full of liquid so I didn't expect it to be so heavy. The cardboard box was full of soundproof panels I expected it to be heavier because it was a solid object.

Density played a role in this because while the soundproof panels are solid they don't have that much material on them and are made of foam while the gallon of milk has a lot of liquid in one space.

Lighter than expected: A large pillow

I thought the mug would be light because it was small, but it felt heavier than I expected. The pillow looked big, so I thought it would weigh more, but it was very light.

This is because of density. The mug has more mass packed into a small space, making it dense. The pillow has a lot of air inside, so it has low density.

Understanding density helps explain why objects that look small can be heavy and objects that look big can be light.

I held a plastic water bottle that felt very light, almost too light for its size, which made me think it was empty when it actually had water inside.

Lighter: A mug

My Reaction

The tiny rock was way heavier than the big mug. I thought since the mug was way bigger than the rock it'd weight more but the rock was heavier than the mug.

Connect to Density

Even thought the rock was small it was made out of heavier stuff than the mug, even though the mug was big it was mostly air and light plastic but it was surprisingly lighter than the rock.

Big Idea

Understanding density helps us realize that size isn't everything when it comes to weight.

lighter object: box full of christmas decorations

The objects weight surprised me because they were both the same exact boxes but which was which, one had heavier objects than the other. One had Christmas lights and tree decorations which aren't as heavy as a box full of files filled to the top.

Density

Density plays its roll in these boxes weight as in which has more inside of them, the box of files was filled to the top and has no room for anything else, making its density and weight high, while the box of Christmas decorations was less dense and lighter because it was not as compact and filled with decorations.

Understanding density helps understand everyday surprises like this by being being able to understand that when something has more inside of it or is more compact, the more dense or heavier it will be, and vise versa.

Lighter then expected: dry hair.

Wet hair gets very heavy then you would expect because the water adds weight that's trapped into your hair especially when its thick hair.

when your hair is dry its very light and flowy its not heavy like it is when its wet.

Desnity played a role because hair absorbs more water, which adds more weight which makes it feel heavier and makes the hair clump together, but when the hair is dry its very light on your head and you barley realize how heavy it can be,

Light: Mouse

My reaction

The keyboard was heavier than the mouse. I know its obvious but when I went over to my friends house, both his mouse and keyboard felt they were the same weight. When I tried with my keyboard and mouse, keyboard was heavier than the mouse. I was shocked because I always felt both weighed the same.

Connection to density:

I think density plays a role in the weight of both because keyboard's and mouse's are made almost with the same materials.

Big idea:

Understanding density helps us because some objects may look and feel the same weight, but in reality they are both different in every way and form.