Open-and-go lessons that inspire kids to love science.

Sign up now for tons of free lessons like this one!

Back > Share
Melting Metal
Material Magic Unit | Anchor Phenomenon

Melting Metal

Material Magic Unit | Anchor Phenomenon
Scroll for prep
Slide Image
All of these people work in the same type of place. Discuss. In what kind of place do you think they all work? What do you see that makes you think that?
Full Screen
Controls Icon Exit Full Screen
Slide Image
These people work in a special type of factory called a foundry. People make things out of metal in a foundry. Let’s visit a foundry!
Full Screen
Controls Icon Exit Full Screen
This is a foundry. It is a big place. People are making things out of metal. Let’s go inside and see how they do it.
Full Screen
Controls Icon Exit Full Screen
This is the inside of the foundry.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Here is what it looks like inside the foundry. Discuss. What do you see? Do you have any guesses about how they make things out of metal in a foundry?
Full Screen
Controls Icon Exit Full Screen
Slide Image
This big machine that was moving is a crane. Let’s go upstairs and get in the crane.
Full Screen
Controls Icon Exit Full Screen
Full Screen
Controls Icon Exit Full Screen
Now we are up high in the crane with the crane driver. She will let us look down at one part of the foundry. Watch, then discuss. What do you see?
Full Screen
Controls Icon Exit Full Screen
Slide Image
This is metal. But it is glowing. Discuss. Why do you think the metal is glowing?
Full Screen
Controls Icon Exit Full Screen
In a foundry, people make things out of metal. The first step is to put metal into big, hot ovens. The metal can be any size or shape, as long as it fits in the oven.
Full Screen
Controls Icon Exit Full Screen
The oven is very hot inside. That makes the metal melt. It starts to turn from a solid into a liquid.
Full Screen
Controls Icon Exit Full Screen
After a while, the metal completely melts. It is now a liquid.
Full Screen
Controls Icon Exit Full Screen
The hot, liquid metal can be scooped up and poured into new shapes, like this. Then the metal cools down and becomes solid again. The metal can be poured into any shape!
Full Screen
Controls Icon Exit Full Screen
Now that you’ve seen what happens in foundries, we are going to figure out what workers wear to stay safe. Watch this person work. Look for what she is wearing to stay safe. Then go to the next slide.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Get a See-Think-Wonder Chart. Your teacher will add your ideas to the class chart.
Full Screen
Controls Icon Exit Full Screen
Slide Image
This person is working in a foundry. Focus on what they are wearing. What do you see them wearing to stay safe? Write it in the See column of your See-Think- Wonder Chart.
Full Screen
Controls Icon Exit Full Screen
Slide Image
How do you think each thing that they are wearing keeps them safe? Write your thoughts in the Think column of your See-Think-Wonder Chart.
Full Screen
Controls Icon Exit Full Screen
Slide Image
What do you wonder about what this person is wearing? Write your answers in the Wonder column of your See-Think-Wonder Chart.
Full Screen
Controls Icon Exit Full Screen
Slide Image
This is the sheet you will use to write what you learn in this unit. You will add to this
sheet after each lesson in the unit, so it doesn’t need to be perfect today.
Full Screen
Controls Icon Exit Full Screen
Slide Image
This person is not ready to work in the foundry! They are only wearing shoes, pants, a shirt, gloves, and a headband to hold their hair back.
Full Screen
Controls Icon Exit Full Screen
Slide Image
First, you will draw the extra things a person needs to wear to be safe in a foundry. Then you will describe what they wear on different parts of their body.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Let’s see how two students got started.
Full Screen
Controls Icon Exit Full Screen
Slide Image
I see them wearing something over their face. I drew it on the picture. I think it’s shiny, so I wrote that down. I’ll add more later, so I left a lot of space.
Full Screen
Controls Icon Exit Full Screen
Slide Image
I see something like a hat. I drew it on my picture. I think I’ve seen those before. I think they’re hard, so I wrote that down. I have space to write more later!
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
01/06
Get a copy of the Beat the Heat worksheet. Write your name at the top.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
02/06
This is a worker in a foundry. We gave them shoes, pants, a shirt, gloves, and a headband to hold their hair back. They are not ready to work in the foundry!
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
03/06
Look at the real foundry worker. Find all of the things they are wearing to stay safe. On your sheet, draw those things in.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
04/06
Now, you are going to describe what they are wearing. You will write more later in the unit, so only write one or two words. Start with what they are wearing on their head and face.
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
05/06
Write one or two words to describe the things they wear on the other parts of their body. Remember: you will write more later, so leave lots of space!
Full Screen
Controls Icon Exit Full Screen
Slide Image
Step
06/06
Save this paper. You can put it on a bulletin board for everyone to see, or just set it somewhere safe. You will add to it after the next lesson.
Full Screen
Controls Icon Exit Full Screen

It's time to do some investigations! In this unit, you'll learn about all sorts of materials and what makes them special. Special materials keep people safe in foundries!

At the end of the unit, you will use everything you've learned in a fun project.

Have fun, and stay curious!

Full Screen
Controls Icon Exit Full Screen
🎉 That’s it for this lesson! How did it go?
Sign up now for more great lessons!
Full Screen
Controls Icon Exit Full Screen

Image & Video Credits

Mystery Science respects the intellectual property rights of the owners of visual assets. We make every effort to use images and videos under appropriate licenses from the owner or by reaching out to the owner to get explicit permission. If you are the owner of a visual and believe we are using it without permission, please contact us—we will reply promptly and make things right.

Other
A two Liter bottle of Orange Soda on a white background with reflection by Steve Cukrov
All illustrations by Alex Kalomeris
Aluminium Foundry Furnace Load With Metal Red Hot Flames Glowing Liquid Melting by Calisproducties
Aluminium Foundry Furnace Load With Metal Red Hot Flames Glowing Liquid Melting by Calisproducties
Aluminum Metallurgical Plant Aerial View by e_leet
Climbing By The Stairs, Metallurgical Plant, Metallurgical Factory, by zmei116
Contrast of rusty tin can and fresh young plant highlights casual still life. Background of vertical photograph in bokeh. by Florence-Joseph McGinn
Ladle Casting Of Liquid Metal Aluminium by aeroshot
One whole disposable opened metal glossy chrome tin for canned food isolated on white background by OlekStock
Opened metal can with pieces of tomatoes in its own juice. Isolated on white background with clipping path by serato
Pouring The Liquid Metal Into The Solder Bar Mold by Pavel_dp
Pouring The Liquid Metal Into The Solder Bar Mold by Pavel_dp
Set with construction safety hardhat on white background by New Africa
Slow Motion Of Aluminium Foundry Furnace Loaded With Metal. Red Hot Flames by Spockmedia
Steel Casting Processes ,Sand Casting and Centrifugal Vertica and horizontal casting by DogukanKirimtayyif
Two Heavy Industry Engineers Stand in Steel Metal Manufacturing Factory, Use Digital Tablet Computer and Have a Discussion. Black African American Industrial Specialist Talk to Female Technician. by Gorodenkoff
Woman Worker Woman's Back Fair Hairs Crane Driver In The Cabin Of Crane Factory by zmei116
Woman Working With Liquid Molten Metal Melted In Furnace At Metallurgical Plant by SVTeam
Worker In White Helmet Comes Looking Crane Is Transporting Steel Vessels Metal by zmei116
Young green plant in an old can, against white background by Thomas Bethge
fusion by Alessandro Colle
zinc ingots isolated on white background by Bjoern Wylezich

Grade 2

Material Properties

Materials & Properties

2-PS1-1, 2-PS1-2, 2-PS1-3

457 reviews

Activity Prep

Print Prep

Note: This lesson is part of this unit’s Anchor Layer. If you have the Anchor Layer turned on, we recommend teaching all lessons in the remainder of this unit in order.

The anchor phenomenon for this unit can be found inside of a special type factory called a Foundry. Foundries are places where people melt solid metal into a liquid that can be poured into new shapes. Foundries can be dangerous places to work, so how do the people that work in foundries stay safe?

During the introduction, students generate observations and questions about the phenomenon and create an initial conceptual model to explain the phenomenon.

Students will gather clues during and after each lesson in this unit to help them improve their explanations. It is important to encourage students to recognize that even if they don't know the perfect answer yet, they are going to learn a lot throughout the unit and will have an opportunity to change or add to their first explanation.

Preview activity

Grade 2

Material Properties

Materials & Properties

2-PS1-1, 2-PS1-2, 2-PS1-3

457 reviews
Slow internet or video problems?